Shows
Simini Boards CastChapter 99 - Part A: The Nose Is a Maze: Anatomy That Explains Nasal DiseaseIn this BoardsCast episode, we begin Tobias Chapter 99 — Nasal Planum, Nasal Cavity, and Sinuses by fixing the “nasal cases are a black box” problem with one mental model:The nose is not a tube. It’s a maze.Once you stop thinking “hollow pipe,” nasal signs stop feeling random. Disease patterns follow anatomy, and the clinical signs tell you where the maze is blocked.You’ll learn:The airflow map: nares → cavity → choanaeWhy turbinates matter (they create the maze)The “four lanes”: ventral / middle / dorsal / common meatus...
2026-03-0921 minSimini Boards CastChapter 99 - Part B: The Nose Is Not Just an Airway: Physiology & FunctionIn this BoardsCast episode, we continue Tobias Chapter 99 — Nasal Planum, Nasal Cavity, and Sinuses with the core reframe that changes how nasal disease makes sense:The nose is not just an airway. It conditions, monitors, and protects every breath before it reaches the lungs. If you bypass or destroy nasal function (intubation, obstruction, turbinate loss), you don’t just change airflow — you change the entire respiratory landscape. The lower airways inherit raw environmental air, which they were never designed to handle. You’ll learn:Why d...
2026-03-0922 minSimini Boards CastChapter 99 - Part C: Sneezing Isn’t a Diagnosis: The Diagnostic ApproachIn this BoardsCast episode, we continue Tobias Chapter 99 — Nasal Planum, Nasal Cavity, and Sinuses with the most important diagnostic framework in upper airway medicine:Sneezing isn’t a diagnosis. It’s an alarm.This episode builds the board-safe model that stops symptom-chasing and starts winning cases:Nasal disease is solved by localization first, diagnosis second.You’ll learn:Why nasal signs are “shared alarms” across wildly different diseasesThe 3 regions to localize: nasal cavity / nasopharynx / sinusesPattern rules: unilateral = focal, bilate...
2026-03-0917 minSimini Boards CastChapter 99 - Part D: Tumor, Fungus, or Inflammation: The Big Three CausesIn this BoardsCast episode, we continue Tobias Chapter 99 — Nasal Planum, Nasal Cavity, and Sinuses by solving the #1 reason chronic nasal cases drag on forever:People treat the symptom instead of the category.Tobias Chapter 99 makes the framework brutally simple: most chronic nasal disease lives in three buckets — and your job is to sort the patient into the right bucket before you chase a microscopic diagnosis.Tumor. Fungus. Inflammation.You’ll learn:The core rule: cate...
2026-03-0921 minSimini Boards CastChapter 99 - Part E: When Surgery Enters the NoseIn this BoardsCast episode, we finish Tobias Chapter 99 — Nasal Planum, Nasal Cavity, and Sinuses by reframing the most stressful moment in nasal disease:When surgery enters the nose, you’re not fighting the incision — you’re fighting the chaos inside.Nasal surgery is notorious for three unavoidable realities: extreme vascularity, complex anatomy in a tiny space, and predictable post-op complications. If you don’t plan for all three, the case fails before you touch the lesion.You’ll learn:Why hemorrhage is...
2026-03-0923 minSimini Boards CastChapter 98 - Part A: Nutrition Is Therapy, Not SupportIn this BoardsCast episode, we begin Tobias Chapter 98 by dismantling the most expensive mistake in postoperative care:The surgery went perfectly… and the patient still declined.That outcome usually isn’t hardware failure or incision failure. It’s a metabolic failure because malnutrition drives surgical failure, even when the operation succeeds. This episode rebuilds your mental model around one dominant truth:Nutrition is active metabolic treatment — not “supportive care.”You’ll learn:Why trauma/illness forces...
2026-03-0619 minSimini Boards CastChapter 98 - Part B: Routes of Feeding: The Access Determines the Strategy”In this BoardsCast episode, we continue Tobias Chapter 98 by confronting a uniquely frustrating ICU moment:The tube worked… and the patient still declined.Because feeding tubes are not procedural decisions. They’re physiologic access decisions—and the route you choose changes the biology of how the patient tolerates, digests, and absorbs nutrition. The dominant mental model for this episode is simple: The feeding route determines the physiologic response.You’ll learn:Why GI segment function dictates strategy (esophagus transport...
2026-03-0618 minSimini Boards CastChapter 98 - Part C: Placement Isn’t the Hard Part: Complications AreIn this BoardsCast episode, we continue Tobias Chapter 98 by confronting the most common feeding-tube reality:The tube was perfect. The complications weren’t.Feeding tubes rarely fail during placement. They fail during management — because once a tube is placed, you’ve created a new portal into the GI tract, a new wound, and a foreign body that lives or dies based on daily handling. This episode builds the practical framework the boards want you to know: most “tube disasters” are predictable and preventable — dislodgement, peristomal infection/der...
2026-03-0618 minSimini Boards CastChapter 98 - Part D: Feeding the Sick Patient: Metabolism, Refeeding & MonitoringIn this BoardsCast episode, we continue Tobias Chapter 98 with one of the most terrifying clinical reversals:The feeding worked… and the patient crashed.This episode rebuilds the mental model that prevents that disaster: Enteral nutrition is not calorie delivery — it’s a metabolic restart.A starved patient is running on a low-insulin, catabolic “idle.” When you suddenly deliver a full carbohydrate load, you trigger a massive insulin surge — and that surge drives electrolytes out of the bloodstream and into cells. The blood values drop off a cliff, and...
2026-03-0620 minSimini Boards CastChapter 98 - Part E: When the Tube Comes Out: Long-Term Management & RemovalIn this BoardsCast episode, we finish Tobias Chapter 98 with the scenario every clinician has lived:The tube came out… and two days later, the patient stopped eating.This episode reframes tube removal the way the boards (and real life) demand: removing a feeding tube is not the end of a treatment plan. It’s a calculated transition decision—and most failures happen because the tube is abandoned too soon. The dominant mental model is simple: A feeding tube is a bridge to phys...
2026-03-0619 minSimini Boards CastChapter 97 - Part A: The Pancreas Is a Loaded WeaponIn this BoardsCast episode, we begin Tobias Chapter 97 — Pancreas by deleting the most misleading word in small animal medicine: “pancreatitis.”Because the pancreas doesn’t “inflame.” It digests.This episode rebuilds the mental model: the pancreas is a controlled chemical plant that produces enzymes designed to destroy proteins and fat — and the only thing preventing catastrophe is containment. When containment fails, the organ doesn’t just injure itself. It injures everything around it and can trigger a systemic shutdown. You’ll learn:Why autodi...
2026-03-0216 minSimini Boards CastChapter 97 - Part E: Diabetes, Exocrine Insufficiency & Long-Term ConsequencesIn this BoardsCast episode, we finish Tobias Chapter 97 — Pancreas by confronting the most common long-game trap after pancreatitis:Surviving the fire doesn’t mean the factory works.This episode reframes pancreatic “recovery” the way the boards want you to think about it: acute survival often creates a new baseline — and the consequences show up weeks to months later as endocrine failure (diabetes), exocrine failure (EPI), or progressive decline from chronic fibrosis. You’ll learn:Why acute res...
2026-03-0219 minSimini Boards CastChapter 97 - Part D: Biliary–Pancreatic Intersection: Obstruction Changes EverythingIn this BoardsCast episode, we continue Tobias Chapter 97 — Pancreas with the scenario that forces a full paradigm shift on the table:It looked like a gallbladder case until the pancreas lit up. This episode teaches the dominant mental model for the biliary–pancreatic intersection:The pancreas and biliary system don’t just live next to each other — they share plumbing. And in physiology, shared plumbing means shared consequences.The core rule you’ll remember from this entire episode: obstruction converts flow into pr...
2026-03-0220 minSimini Boards CastEpisode 97 - Part C: Pancreatic Abscesses & Necrosis: When to Cut and When to WaitIn this BoardsCast episode, we continue Tobias Chapter 97 — Pancreas by reframing pancreatic surgery with the only rule that matters:It is not an anatomical decision. It is a timing decision.This episode builds a judgment-focused, physiology-driven framework for the key binary the boards want you to separate instantly:Sterile necrosis vs infected necrosis.Because early in pancreatitis, CT and ultrasound can look terrifying — and still be sterile. Operating in that early edematous phase doesn’t “fix the pancreas.” It often makes it worse...
2026-03-0219 minSimini Boards CastEpisode 97 - Part B: Acute Pancreatitis: Local Fire, Systemic ExplosionIn this BoardsCast episode, we continue Tobias Chapter 97 — Pancreas by forcing the single most important reframe in acute pancreatitis:This is not an abdominal problem. It’s a circulatory collapse problem.Acute pancreatitis starts as a local enzyme injury — and then it flips into a systemic disease when containment fails. Once cytokines and inflammatory mediators escape, the patient crosses the only line that matters:local fire → systemic explosion.You’ll learn:The dominant mental model: local enzyme injury trig...
2026-03-0219 minSimini Boards CastChapter 96 - Part A: When Blood Skips the Liver: The Physiology of ShuntingIn this BoardsCast episode, we begin Tobias Chapter 96 — Hepatic Vascular Anomalies by reframing portosystemic shunts the way the boards want you to think:This isn’t a “bad liver” problem, it’s a routing problem — a supply-chain failure where blood skips the liver’s filtration system. That’s why these patients can look neurologically catastrophic while the liver looks structurally “fine.” The factory still works — the delivery trucks just drive right past it. You’ll learn:Normal portal physiology: GI blood must p...
2026-02-2418 minSimini Boards CastChapter 96 - Part B: Congenital Portosystemic Shunts: Anatomy Dictates StrategyIn this BoardsCast episode, we continue Tobias Chapter 96 — Hepatic Vascular Anomalies by confronting the biggest trap in shunt management:Same diagnosis ≠ same danger.A tiny Yorkie and a massive Irish Wolfhound can present with the same story — failure to thrive, post-prandial neuro signs, sky-high bile acids, microhepatica — and still be two completely different surgical problems. This episode locks in the governing rule for congenital portosystemic shunts:Location determines risk. Architecture is destiny.You’ll learn:What a CPS...
2026-02-2418 minSimini Boards CastChapter 96 - Part C: Portal Hypertension & Acquired Shunts: The Pressure ProblemIn this BoardsCast episode, we continue Tobias Chapter 96 — Hepatic Vascular Anomalies by dismantling the most dangerous mistake clinicians make the moment they see a “bag of worms” on ultrasound:You found the shunts… but that’s not the disease.This is a physics episode, not an anatomy episode: the real pathology is portal hypertension — increased intrahepatic resistance in a valveless system. When pressure rises high enough, the body reopens dormant collateral vessels to protect the splanchnic circulation. That chaotic cluster is the pop-off valv...
2026-02-2418 minSimini Boards CastChapter 96 - Part D: Attenuation Is a Pressure ExperimentIn this BoardsCast episode, we continue Tobias Chapter 96 — Hepatic Vascular Anomalies by confronting the shunt-surgery nightmare:The vessel closed… and the patient crashed.That crash happens when you treat attenuation like ligation—like you’re just tying off a tube—when it’s actually a high-stakes pressure experiment. Shunt surgery isn’t “closing a hole.” It’s controlled portal hypertension to force portal blood back through a liver that may be too small and too underdeveloped to tolerate the load. You’ll learn:
2026-02-2419 minSimini Boards CastChapter 96- Part E: Post-Attenuation Complications & Long-Term OutcomesIn this BoardsCast episode, we finish Tobias Chapter 96 — Hepatic Vascular Anomalies with the nightmare every shunt surgeon fears:The shunt was fixed… and the problems weren’t.This episode explains why shunt attenuation is not a “cure switch.” It’s a forced physiologic reset — and the complications that follow (especially PANS and portal hypertension) are usually adaptation problems, not surgical mistakes. You’ll learn:Why attenuation is a pressure + adaptation event, not a simple plumbing repair W...
2026-02-2420 minSimini Boards CastChapter 95 - Part E: Postoperative Liver Failure & Systemic ConsequencesIn this BoardsCast episode, we finish Tobias Chapter 95 — Liver and Biliary System by confronting the nightmare scenario in hepatic surgery:"The lobectomy was perfect… and the patient crashes anyway."This happens because we confuse two different wins:"anatomical success" (no bleeding, no bile leak, clean margins) vs "metabolic success" (the remaining liver can still run the body). Postoperative liver failure is not a “surgical complication.” It’s a reserve vs demand mismatch — a factory that got downsized, but the body’s metabolic quota...
2026-02-2320 minSimini Boards CastChapter 95 - Part D: The Biliary System: Drainage Is SurvivalIn this BoardsCast episode, we continue Tobias Chapter 95 — Liver and Biliary System by confronting the most dangerous mental mistake in biliary surgery:Treating bile like a static fluid.Because bile isn’t “water in a bucket.” It’s hydraulic pressure in a closed system—and the liver has no off switch. If the outflow is blocked, production continues, pressure rises, and the system fails upstream. This episode rebuilds the operating system for biliary cases around one rule:Drainage determines su...
2026-02-2322 minSimini Boards CastChapter 95 - Part C: Hemorrhage, Shunts, and Portal HypertensionIn this BoardsCast episode, we continue Tobias Chapter 95 — Liver and Biliary System by confronting the most terrifying intra-op moment in hepatic surgery:"The bleeding won’t stop." Not spraying. Just welling up from everywhere.That’s the point where most surgeons make a category error: they treat the liver like soft tissue… and try to “out-suture” a pressure system.This episode builds the core mental model the boards want you to say out loud:Liver surgery is vascular surgery disguised as...
2026-02-2319 minSimini Boards CastChapter 95 - Part A: The Liver Is a Processing Plant, Not a Solid OrganIn this BoardsCast episode, we begin Tobias Chapter 95 — Liver and Biliary System by dismantling the most dangerous misconception in hepatic surgery:The liver is not a solid organ. It’s a flow-dependent processing plant.That’s why the scariest liver cases don’t die from bleeding. They die 12 hours later with a stable hematocrit, because the “factory” lost perfusion and the patient crashes from hypoglycemia, coagulopathy, and encephalopathy. You’ll learn:Why liver surgery is perfusion management disgu...
2026-02-2318 minSimini Boards CastChapter 95 - Part B: Masses, Nodules, and the Resection DecisionIn this BoardsCast episode, we continue Tobias Chapter 95 — Liver and Biliary System by confronting the most seductive trap in liver surgery:“The CT looked operable… so we operated.”That’s how you get the haunting outcome: technically perfect lobectomy, great hemostasis, clean closure… and the patient still doesn’t survive the week because you prioritized anatomical opportunity over biologic cost. This episode rebuilds the decision framework the boards want you to have cold: liver resection is not a “remove the lump” problem. It’s a ...
2026-02-2318 minSimini Boards CastChapter 94 - Part A: The Outlet Problem: Why the Last 5 Centimeters Matter MostIn this BoardsCast episode, we begin Tobias Chapter 94 — Rectum, Anus, and Perineum with the concept that changes how you approach every “simple” defecation case:The last 5 cm is not plumbing — it’s a continence system.Most failures at the outlet aren’t because there’s “too much stool.” They happen because the anatomy, nerves, sphincters, and blood supply at the distal rectum and anus have zero tolerance for trauma, tension, or misdiagnosis.You’ll learn:Why the distal rectum/anus behaves differently than the rest of the...
2026-02-1815 minSimini Boards CastChapter 94 - Part B: Perineal Hernias: When the Pelvic Floor FailsIn this BoardsCast episode, we continue Tobias Chapter 94 — Rectum, Anus, and Perineum by reframing perineal hernias the way the boards (and real life) demand:A perineal hernia isn’t a “hole.” It’s a structural collapse.If you treat it like a simple defect and just “stitch it shut,” you’re anchoring sutures into tissue that already failed — which is why recurrence rates are historically ugly. This episode builds the load-bearing model of the pelvic diaphragm and shows why durable repairs come from restoring support + force vectors, not closing a gap...
2026-02-1818 minSimini Boards CastChapter 94- Part C: Rectal Tears, Dehiscence, and the Suture LieIn this BoardsCast episode, we continue Tobias Chapter 94 — Rectum, Anus, and Perineum by confronting the most dangerous belief in rectal repair:“If the sutures hold, the repair holds.”That’s the suture lie.Rectal failures are usually not knot failures — they’re biology failures inside a rigid pelvic cage, where three forces decide whether the patient survives:contamination + tension + perfusion.This episode builds the board-level failure framework for why rectal repairs can look stable in the OR, then...
2026-02-1813 minSimini Boards CastChapter 94 - Part D: Anal Sac Disease: Infection, Abscess, and the Surgical TrapIn this BoardsCast episode, we continue Tobias Chapter 94 — Rectum, Anus, and Perineum by dismantling the most dangerous assumption in “routine” perineal surgery:“Anal sacs are gross… just cut them out.”Anal sac disease is usually not a surgical problem at its core. It’s an inflammatory drainage disorder driven by an obstruction cascade: impaction → inflammation → infection → abscess → rupture. And here’s the trap: rupture doesn’t fix the disease — it destroys your anatomy, so if you operate in the hot, swollen phase, you’re operating blin...
2026-02-1815 minSimini Boards CastChapter 94 - Part E: Successful Surgery, Failed Continence: The Rectal Physiology TrapIn this BoardsCast episode, we finish Tobias Chapter 94 — Rectum, Anus, and Perineum by tackling the scenario that breaks surgeons:The incision healed… and the dog is incontinent.This is the rectal physiology trap: we grade success by closure, but the owner grades success by function. And in rectal surgery, healing does not equal continence.You’ll learn the continence system as a four-part machine — and why damaging even one component can turn a technically “perfect” procedure into a life-altering failure:...
2026-02-1813 minSimini Boards CastChapter 93 - Part A: The Colon Isn’t Just Dirtier — It’s Less ForgivingIn this BoardsCast episode, we begin Tobias Chapter 93 — Colon by dismantling the most dangerous assumption in large bowel surgery:“I’ll just close it like small intestine.”That mindset is how you get the nightmare outcome: the suture is still tied, the pattern was “perfect,” and the patient crashes two days later with septic peritonitis — because colonic surgery is not primarily a suturing problem.It’s a vascular and bacterial problem.This episode rebuilds the mental model for why the colon fails...
2026-02-1315 minSimini Boards CastChapter 93 - Part B: Megacolon Is a Neurologic Problem, Not a Stool ProblemIn this BoardsCast episode, we continue Tobias Chapter 93 — Colon by deleting the most dangerous mental model in constipation medicine:megacolon is not a plumbing problem.If you treat it like a clog—more laxatives, more enemas, more fiber—you can waste critical time while the colon is literally losing the ability to contract. This episode reframes megacolon correctly: a neuromuscular failure where the “container” is broken, not just the “content.” You’ll learn:Why treating megacolon like a stool problem is dangerous (symptom treatment...
2026-02-1313 minSimini Boards CastChapter 93 - Part C: Colonic Anastomosis: Why This Leak Is Worse Than the Last OneIn this BoardsCast episode, we continue Tobias Chapter 93 — Colon by confronting the nightmare scenario that feels like a betrayal:You’ve repaired small intestinal leaks before.You’ve done a hundred resections.And then you treat the colon the same way… and the patient crashes.Because a colonic anastomosis is not “plumbing.”It is a pressure-sealed septic barrier sitting in a hostile environment — and if it fails, it doesn’t smolder like small bowel. It detonates.This episod...
2026-02-1317 minSimini Boards CastChapter 93 - Part D: Foreign Bodies, Linear Tension & Colonic ObstructionIn this BoardsCast episode, we continue Tobias Chapter 93 — Colon by confronting the most common (and most lethal) trap in abdominal surgery:“It’s just constipated.” “It’s just a foreign body.” “Let’s wait until morning.”That “stable obstruction” is often a ticking time bomb — because colonic obstruction is not a plumbing issue.It’s a pressure-driven vascular emergency happening inside an organ packed with bacteria. This episode builds the mental model the boards want you to recognize...
2026-02-1316 minSimini Boards CastChapter 93 - Part E: Successful Colectomy, Failed Patient: The Colon Physiology TrapIn this BoardsCast episode, we finish Tobias Chapter 93 — Colon by confronting the scenario that haunts surgeons:successful colectomy. failed patient.Margins were clean. The anastomosis looked perfect. No leak on the table.And then 36 hours later, the patient is hypotensive, septic, and crashing — because colon surgery doesn’t fail in the abdomen.It fails in physiology.This episode builds the framework the boards want you to recognize instantly: post-colectomy survival is driven by three killing forces — fluid shifts...
2026-02-1313 minSimini Boards CastChapter 92 - Part A: The Small Intestine Is a High-Risk Organ: Why Leaks Kill FastIn this BoardsCast episode, we begin Tobias Chapter 92 - Small Intestine with the most important (and most ignored) truth in GI surgery:The small intestine is not “just another tube.”It’s a high-risk organ with near-zero tolerance for error — and when it leaks, it doesn’t “complicate”… it collapses.This episode rebuilds the mental model for why small intestinal repairs fail, why “pink” can still be dead bowel, and why most catastrophic outcomes are biological failures—not technical ones. You’ll learn:
2026-02-1015 minSimini Boards CastChapter 92 - Part E: Successful Anastomosis, Dead Dog: The Small Intestine Failure PatternIn this BoardsCast episode, we finish Tobias Chapter 92 — Small Intestine by locking in the most brutal (and most common) postoperative pattern in GI surgery:successful anastomosis. dead dog.The leak test was dry. The closure looked perfect. And the patient still dies 48 hours later — because technical success can be meaningless if the tissue and the patient physiology are already failing.This final episode of Chapter 92 builds the board-level failure framework: small intestine surgery is a physiologic stress test, and outcomes are often decided before you c...
2026-02-1017 minSimini Boards CastChapter 92 - Part D: Foreign Bodies, Linear Traps, and the Bowel You Shouldn’t SaveIn this BoardsCast episode, we continue Tobias Chapter 92 - Small Intestine by confronting one of the most lethal instincts in GI surgery:“Save as much bowel as you can.”With linear foreign bodies, that instinct is the trap.Because a linear foreign body isn’t a simple obstruction — it’s a tension-driven injury pattern that creates diffuse damage, especially along the mesenteric border where the blood supply enters the bowel. And the inside injury is often worse than what your eyes show you o...
2026-02-1015 minSimini Boards CastChapter 92 - Part C: Anastomosis Isn’t Closure: Tension, Diameter, and the Leak You BuiltIn this BoardsCast episode, we continue Tobias Chapter 92 - Small Intestine by dismantling the most dangerous misconception in GI surgery:An anastomosis is not “closure.”It’s engineering — a dynamic, load-bearing junction inside a pressurized hydraulic system. Because here’s the nightmare: the sutures hold, the knots are perfect, the leak test is dry… and 36 hours later the abdomen is full of septic fluid. Not because you “missed something” — but because the failure was designed on the table.This episode shif...
2026-02-1016 minSimini Boards CastChapter 92 - Part B: Blood Supply, Margins, and the Ischemic LieIn this BoardsCast episode, we continue Tobias Chapter 92 - Small Intestine by confronting the most dangerous belief in intestinal surgery:“It’s pink. It moves. It’s fine.”That assumption kills patients.Because small intestine can look alive while it is already biologically doomed—and the failure doesn’t declare itself in the OR. It declares itself 48–72 hours later as septic peritonitis. This episode rebuilds your viability assessment around perfusion and physiology, not cosmetics. You’ll learn why surgeons accidentally crea...
2026-02-1018 minSimini Boards CastChapter 91 - Part D: Gastric Outflow Is a Trap: Why Pyloric Surgery Breaks PatientsIn this BoardsCast episode, we continue Tobias Chapter 91 by exposing one of the most deceiving failure patterns in soft-tissue surgery:👉 The pylorus is not a pipe you “open.” It is a timing valve in a pressure-driven pump.Surgeons often judge pyloric surgery by one metric — “Is the lumen open?” But gastric outflow doesn’t fail because the hole is too small. It fails because the timing mechanism of the antrum–pylorus unit has been disrupted.This episode reframes pyloric surgery from structural plumbi...
2026-01-2918 minSimini Boards CastChapter 91 - Part E: Successful Surgery, Dead Dog: The Gastric Failure PatternIn this final episode of the stomach series, we dismantle one of the most dangerous illusions in soft-tissue surgery:👉 A perfect gastric surgery does not guarantee a living patient. 👉 The stomach lies — beautifully. It can look pink, perfused, and “saved”… while the physiology collapses quietly over the next 72 hours.This Deep Dive reframes gastric surgery as a systems reboot, not a mechanical repair. You’ll learn why the stomach’s redundant blood supply fools surgeons, why “successful repair, dead dog” is a predictable pattern, and the fi...
2026-01-2916 minSimini Boards CastChapter 91 - Part C: Gastrotomy, Gastrectomy, and the Blood Supply You ForgotIn this BoardsCast episode, we continue Tobias Chapter 91 — Stomach by exposing one of the most dangerous misconceptions in gastric surgery: Most stomach leaks are not caused by bad knots, they are caused by bad perfusion.Surgeons often obsess over the closure pattern, the knot quality, and the suture line appearance — but the stomach doesn’t fail because of sewing errors. It fails because of the vascular decisions made 30–60 minutes before the last stitch was placed.This episode reframes gastrotomy and gastrectomy around the single variable that trul...
2026-01-2913 minSimini Boards CastChapter 91 - Part B: GDV Isn’t About the Stomach — It’s About CirculationIn this BoardsCast deep dive, we continue Tobias Chapter 91 — Stomach by reframing GDV in the way surgeons must understand it for boards, for practice, and for saving lives.GDV is not a stomach problem. GDV is a cardiovascular collapse event disguised as a stomach twist.For decades, surgeons have been trained to “fix the twist” — untwist the organ, check viability, remove the spleen if it looks ugly. But the lethal physiology of GDV occurs long before the stomach ever becomes ne...
2026-01-2918 minSimini Boards CastChapter 91 - Part A: The Stomach Is a Reservoir, Not a BagIn this BoardsCast episode, we begin Tobias Chapter 91 – Stomach by dismantling one of the most common (and dangerous) mental models in soft-tissue surgery: The stomach is not a bag. It is a reservoir, a grinder, a mixing engine, and a precision gatekeeper — and when surgeons treat it like a passive container instead of a physiological machine, patients fail despite perfect closures.This episode reframes gastric surgery from “fix the hole” to “protect the physiology.” We explore how surgeons can break stomach function even when the incision is flawless an...
2026-01-2917 minSimini Boards CastChapter 90 - Part E: Successful Repair, Dead Patient: The Esophageal Surgery TrapIn this BoardsCast episode, we conclude Tobias Chapter 90 – Esophagus by uncovering the most dangerous misconception in esophageal surgery:👉 A technically perfect repair does not mean the patient will survive.While most soft-tissue procedures succeed when the incision seals, the esophagus plays by completely different rules. A watertight repair can still lead to aspiration pneumonia, starvation, strictures, chronic dysfunction, and delayed death — often weeks after surgery.This episode reframes esophageal procedures not as “closure surgeries,” but as functional, physiologic, long-term recovery battles.You’ll...
2026-01-2713 minSimini Boards CastChapter 90 - Part A: The Esophagus Is Not a Tube: Why It Fails So EasilyIn this BoardsCast episode, we begin Tobias Chapter 90 – Esophagus by dismantling the biggest misconception in thoracic and cervical surgery: The esophagus is NOT a simple tube. It is the worst organ in the body to suture, the least forgiving of trauma, and the most prone to catastrophic postoperative failure.Understanding why the esophagus fails — anatomically, mechanically, physiologically — is essential for both board exams and real-world surgical decision-making.You’ll learn:Why the esophagus lacks serosa — and why that alone changes everythingHow segmental blood supply makes heal...
2026-01-2715 minSimini Boards CastChapter 90 - Part B: Timing Kills: Why Esophageal Surgery Is a Race Against BiologyIn this BoardsCast episode, we continue Tobias Chapter 90 – Esophagus with the single most unforgiving truth in esophageal surgery: timing is life — or death.Unlike intestine, skin, or stomach, the esophagus has almost no reserve capacity. Ischemia begins early. Contamination happens instantly. Dehiscence is common. Delays are catastrophic. Every minute between injury, diagnosis, stabilization, and intervention influences whether the patient lives — or whether the esophagus fails.This episode breaks down the physiology, the timeline, and the surgical reasoning behind why esophageal emergencies must be approached with urgency and pre...
2026-01-2714 minSimini Boards CastChapter 90 - Part C: Primary Repair Is a Trap: When Closure Guarantees DehiscenceIn this BoardsCast episode, we continue Tobias Chapter 90 – Esophagus by confronting one of the deadliest assumptions in soft-tissue surgery: “If it’s perforated, just close it.”For the esophagus, that logic is often fatal. Because of its segmental blood supply, lack of serosa, constant motion, high intraluminal pressure, and heavy contamination, primary closure is frequently the worst possible choice — and in many cases, it guarantees dehiscence.This episode rewrites the mental model of esophageal repair by explaining when NOT to close, when alternative strategies outperform primary sut...
2026-01-2715 minSimini Boards CastChapter 90 - Part D: Leaks, Strictures, and Aspiration: The Delayed Failure CascadeIn this BoardsCast episode, we continue Tobias Chapter 90 – Esophagus by confronting one of the deadliest assumptions in soft-tissue surgery: “If it’s perforated, just close it.”For the esophagus, that logic is often fatal. Because of its segmental blood supply, lack of serosa, constant motion, high intraluminal pressure, and heavy contamination, primary closure is frequently the worst possible choice — and in many cases, it guarantees dehiscence.This episode rewrites the mental model of esophageal repair by explaining when NOT to close, when alternative strategies outperform primary sut...
2026-01-2716 minSimini Boards CastChapter 89 - Part E: Successful Resection, Failed Patient: The Jaw Surgery TrapIn this BoardsCast episode, we conclude Tobias Chapter 89 - Mandibulectomy and Maxillectomy with a hard surgical truth: a perfectly executed jaw resection can still leave you with a failing patient.In jaw oncology, the resection is only half the operation. The other half is biomechanics, alignment, occlusion, airway, soft-tissue tension, salivary contamination, nerve disruption, and postoperative function. When those pieces don’t align, a “successful” surgery quickly becomes a clinical failure.This episode exposes the hidden traps behind mandibular and maxillary resections and explains why fun...
2026-01-2316 minSimini Boards CastChapter 89 - Part A: Margins Are Not Enough: The Mental Model of Jaw ResectionIn this BoardsCast episode, we begin Tobias Chapter 89 - Mandibulectomy and Maxillectomy by addressing one of the biggest misconceptions in oral oncology: jaw resections are not about margins — they’re about mechanics, stability, function, and reconstruction.While margins determine oncologic success, they tell you nothing about whether the patient will still be able to eat, breathe, swallow, and function normally afterward. Bone cuts, occlusion, vascular supply, load distribution, and mandibular dynamics matter just as much — and sometimes even more.You’ll learn:Why margins alone are an incomple...
2026-01-2315 minSimini Boards CastChapter 89 - Part B: Mandibulectomy Mechanics: Curved Beams, Load Paths, and Fracture You CreatedIn this BoardsCast episode, we continue Tobias Chapter 89 - Mandibulectomy and Maxillectomy by shifting from oncology to biomechanics. Mandibulectomy isn't just about removing bone — it permanently alters a curved beam that carries load, and every cut changes how the mandible bends, twists, and fractures.Most postoperative complications aren’t due to infection or wound breakdown… They’re due to mechanics the surgeon didn’t account for.You’ll learn:Why the mandible behaves like a curved, asymmetric beamHow occlusal forces travel through the mandible — and what happen...
2026-01-2313 minSimini Boards CastChapter 89 - Part C: Maxillectomy Isn’t Mandibulectomy: Why the Upper Jaw Fails DifferentlyIn this BoardsCast episode, we continue Tobias Chapter 89 - Mandibulectomy and Maxillectomy by breaking down a critical but often misunderstood reality: maxillectomy is not mandibulectomy. The upper jaw functions differently, carries load differently, fails differently, and requires an entirely separate mental model for planning and reconstruction.Unlike the mandible — a mobile, curved beam with bilateral musculature — the maxilla is a fixed structural platform integrated with the nasal cavity, sinuses, orbit, and hard palate. Resections here change airway dynamics, occlusion, cosmetic appearance, and skull biom...
2026-01-2316 minSimini Boards CastChapter 89 - Part D: Reconstruction vs Second Intention: When Fixing the Defect Makes Things WorseIn this BoardsCast episode, we continue Tobias Chapter 89 - Mandibulectomy and Maxillectomy by exploring one of the most counterintuitive truths in maxillofacial surgery: Sometimes, the worst thing you can do is “fix” the defect.After mandibulectomy or maxillectomy, reconstruction may seem like the right choice — but in many cases, reconstruction creates more complications than it prevents. Between tension, necrosis, infection, occlusal mismatch, airway compromise, and mechanical failure, repairing the defect can turn a stable patient into a failing one.This episode explains when to reconstruct, when not to...
2026-01-2318 minSimini Boards CastChapter 88 - Part A: Saliva Is Not the Enemy: When Swellings Aren’t Glands at AllIn this BoardsCast episode, we begin Tobias Chapter 88 – Salivary Glands, and tackle one of the most common diagnostic traps in head and neck surgery: not every swelling near the mandible, cheek, or throat is a salivary gland problem.Many oral, dental, lymphatic, traumatic, and neoplastic conditions mimic salivary disease. Misdiagnosis leads to wrong surgeries, unnecessary gland removals, and missed pathologies.This episode teaches you how to think systematically when you see a “salivary swelling” — and how to avoid the trap.You’ll learn:When a swelling l...
2026-01-2115 minSimini Boards CastChapter 88 - Part C: Successful Excision, Failed Patient: The Salivary Surgery TrapIn this BoardsCast episode, we close out Tobias Chapter 88 – Salivary Glands by exposing one of the most frustrating paradoxes in head and neck surgery: the gland excision goes perfectly… and yet the patient still fails.Salivary surgery is deceptively simple. The anatomy is tight. The ducts are fragile. The nerves are unforgiving. And even a technically flawless removal can lead to postoperative complications that derail recovery.This episode breaks down the traps surgeons fall into — and how to avoid turning a “successful” excision into a failed patient ou...
2026-01-2117 minSimini Boards CastChapter 88 - Part B: The Sialocele Trap: Why Drainage Always FailsIn this BoardsCast episode, we continue Tobias Chapter 88 – Salivary Glands by examining one of the most misunderstood conditions in small animal surgery: the sialocele.Sialoceles look like abscesses, behave like cysts, and fool clinicians into thinking drainage will fix the problem. But drainage always fails — because the underlying issue is not the fluid… it’s the leaking gland or duct producing it.This episode breaks down the diagnosis, the physiology, the surgical plan, and exactly what the boards expect you to know.You’ll learn:What a sia...
2026-01-2113 minSimini Boards CastChapter 87 - Part B: Margins, Depth, and Deception: Why Oral Tumors Are Harder Than They LookIn this BoardsCast episode, we move deeper into Tobias Chapter 87 – Soft Tissues of the Oral Cavity and focus on one of the most deceptively challenging areas of surgical oncology: oral tumors.Oral neoplasms defy visual judgment. They look smaller than they are, they invade deeper than expected, and they require wider, more aggressive margins than almost any other soft-tissue lesion. This episode explains why.You’ll learn:Why oral tumors extend far beyond what you see on examHow mucosa, submucosa, and bone interact in tumor spreadWhy “depth” matters...
2026-01-2018 minSimini Boards CastChapter 87 - Part D: Saliva Is Not Benign: Fistulas, Dehiscence, and the Oral Failure CascadeIn this BoardsCast episode, we continue Tobias Chapter 87 – Soft Tissues of the Oral Cavity by focusing on the single greatest enemy of oral wound healing: saliva.Saliva isn’t harmless — it is enzymatic, contaminated, and constantly bathing wounds in a chemical soup that dissolves clots, weakens sutures, and sabotages primary closure. Combined with tongue motion, mastication forces, and the oral microbiome, it creates a predictable failure cascade leading to dehiscence, oronasal fistulas, and chronic breakdown.You’ll learn:Why saliva chemically interferes with wound healingH...
2026-01-2013 minSimini Boards CastChapter 87 - Part C: To Close or Not to Close: When Oral Wounds Should Heal OpenIn this BoardsCast episode, we continue Tobias Chapter 87 – Soft Tissues of the Oral Cavity by challenging one of the biggest misconceptions in oral surgery: Not all wounds in the mouth should be closed. Some should heal open — and in many cases, closure actually makes things worse.Oral soft tissue is elastic, mobile, contaminated, enzyme-rich, and highly vascular. These factors make it excellent at healing… but terrible at holding tension. This episode explains when closure helps, when it harms, and how to know the difference.You’ll learn:Why so...
2026-01-2016 minSimini Boards CastChapter 87 - Part A: The Mouth Is a Battlefield: Why Oral Soft Tissue Never Behaves Like SkinIn this BoardsCast episode, we begin Tobias Chapter 87 – Soft Tissues of the Oral Cavity by tackling one of the most misunderstood principles in soft-tissue surgery: Oral tissue is not skin with moisture — it is a completely different biological environment.High bacterial load, constant motion, enzymatic activity, saliva chemistry, and poor mechanical advantage combine to create a battlefield where wounds behave unpredictably, repairs fail easily, and healing pathways diverge from any other region of the body.You’ll learn:Why oral soft tissue heals fast b...
2026-01-2018 minSimini Boards CastChapter 87 - Part E: Successful Resection, Failed Patient: The Oral Surgery TrapIn this BoardsCast episode, we conclude Tobias Chapter 87 – Soft Tissues of the Oral Cavity by exploring one of the most deceptive problems in oral surgery: the trap where the resection is perfect… but the patient fails.Oral resections are unforgiving. Even technically flawless surgery can unravel due to oral biomechanics, bacterial load, flap design errors, tension, salivary contamination, airway compromise, and postoperative pain leading to self-trauma.In this episode, we break down:Why a “clean margin” does not guarantee a successful outcomeThe biomechanics that destroy oral clo...
2026-01-2017 minSimini Boards CastChapter 86 - Part D: Effusion Isn’t the Diagnosis: Blood, Bile, Urine, or Pus?In this BoardsCast episode, we continue through Tobias Chapter 86 – Peritoneum & Retroperitoneum by confronting one of the biggest diagnostic errors in abdominal surgery: Calling effusion the diagnosis. Effusion is a symptom, not a conclusion — and it’s your job to determine whether that fluid is blood, bile, urine, or pus, because each has radically different implications, urgencies, and treatments.You’ll learn:Why “effusion” is meaningless without knowing what it isHow to rapidly differentiate hemoperitoneum, uroabdomen, septic peritonitis, and bile peritonitisHow the peritoneal surface reacts differently to each type of...
2026-01-1414 minSimini Boards CastChapter 86 - Part E: Successful Lavage, Dead Patient: The Peritoneal Failure PatternIn this BoardsCast episode, we conclude our Tobias Chapter 86 – Peritoneum & Retroperitoneum series with one of the most dangerous misconceptions in soft-tissue surgery: “The abdomen looks good after lavage, so the patient is going to be fine.” Wrong.The peritoneum has a predictable failure pattern — and if you don’t recognize it, a patient who looks stable can decompensate and die hours after a “successful” surgery.You’ll learn:Why visual improvement during surgery does not mean biologic recoveryHow peritoneal cytokine storms drive postoperative collapseWhy lavage removes d...
2026-01-1416 minSimini Boards CastChapter 86 - Part A: The Peritoneum Is Not a Space: Why Fluids, Infection, and Cancer Spread the Way They DoIn this BoardsCast episode, we open Tobias Chapter 86 – Peritoneum & Retroperitoneum and reframe the peritoneum not as an “empty space,” but as a dynamic, vascular, absorptive surface that determines how fluid, infection, inflammation, and cancer move through the abdomen.Understanding this concept transforms how you interpret peritonitis, effusion, neoplasia, and surgical contamination — and explains why abdominal disease behaves the way it does.You’ll learn:Why the peritoneum acts like a giant sponge, not a containerHow fluid moves across peritoneal surfaces (and why it accumulates)How infection spreads in predictabl...
2026-01-1415 minSimini Boards CastChapter 86 - Part B: Localized vs Generalized Peritonitis: The Lie Surgeons Tell ThemselvesIn this BoardsCast episode, we continue our deep dive into Tobias Chapter 86 – Peritoneum & Retroperitoneum, expanding on how the peritoneum behaves as a biologic surface, not a “space,” and how that reality shapes the spread of infection, fluid, inflammation, and cancer.Part B builds on the physiologic foundation from Part A and applies it to real clinical patterns, helping you understand why abdominal disease never behaves randomly — it follows rules.You’ll learn:Why contamination spreads quickly while infection often stays localizedHow carcinoma “seeds” the abdomen along dependent surf...
2026-01-1414 minSimini Boards CastChapter 85 - Part A: The Diaphragm Is a Pressure Valve, Not a WallIn this BoardsCast episode, we open Tobias Chapter 85 – Diaphragmatic Hernias and reframe the diaphragm not as a rigid barrier, but as a dynamic pressure valve that responds to changes in thoracic and abdominal forces.Understanding that concept unlocks everything about diaphragmatic injury, herniation, organ displacement, respiratory compromise, and surgical timing.You’ll learn:Why the diaphragm behaves like a flexible pressure regulatorHow negative thoracic pressure and positive abdominal pressure create herniationWhy chronic hernias behave radically differently from acute onesWhat “loss of domain” means — and why it matters fo...
2026-01-1212 minSimini Boards CastChapter 85 - Part B: Timing Kills: Stabilize or DieIn this BoardsCast episode, we continue our deep dive into Tobias Chapter 85 – Diaphragmatic Hernias, focusing on the most unforgiving variable in these cases: timing. Diaphragmatic hernias are not simply “surgical problems” — they are physiology first, surgery second. And if you operate at the wrong time, even a perfect repair becomes a fatal mistake.You’ll learn:Why stabilization is more important than suturingThe physiology of shock, hypoventilation, and organ displacementThe single biggest reason patients die during inductionWhen to delay surgery — and when delay is the killerThe differences between acute trauma, chro...
2026-01-1213 minSimini Boards CastChapter 85 - Part C: Successful Repair, Dead Patient: The Diaphragmatic TrapIn this BoardsCast episode, we confront the deadly paradox at the heart of diaphragmatic hernia surgery: Sometimes the repair is successful… and the patient still dies.Using Tobias Chapter 85 – Diaphragmatic Hernias as our guide, we break down the physiologic traps that occur after the diaphragm is closed — when shifting organs, changing pressures, and fragile cardiopulmonary dynamics push the patient past their physiologic limits.You’ll learn:Why re-expansion pulmonary edema (REPE) kills patients after “successful” repairHow rapid organ repositioning destabilizes venous returnWhy chronic hernias are the most dangero...
2026-01-1214 minSimini Boards CastChapter 84 - Part E: Contamination, Infection, and the Dirty Abdomen: Why Perfect Repairs Still FailIn this BoardsCast episode, we complete our exploration of Tobias Chapter 84 – Abdominal Wall Reconstruction and Hernias by focusing on the surgical environment every clinician fears: the contaminated or infected abdomen.Even the most technically flawless repair can fail when the underlying biology is hostile. This episode explains why contaminated fields undermine tension, sutures, mesh, and muscle — and how surgeons can avoid predictable, preventable disasters.You’ll learn:Why contamination changes the rules of closureThe biologic cascade that makes fascia incapable of holding suturesWhen mesh becomes danger...
2026-01-0618 minSimini Boards CastChapter 84 - Part D: Contamination, Infection, and the Dirty Abdomen: Why Perfect Repairs Still FailIn this episode of BoardsCast, we stay inside Tobias Chapter 84 – Abdominal Wall Reconstruction and Hernias, focusing on the high-risk abdominal wall: the contaminated, infected, or downright dirty abdomen.Even flawless surgical technique can fail if the biology is wrong — and in a contaminated abdomen, biology is working against you. This episode explains why abdominal wall repairs break down, why some closures should never be attempted, and what reconstruction strategies actually succeed.You’ll learn:The difference between contamination, infection, and septic abdomenWhy primary closure often fails even w...
2026-01-0612 minSimini Boards CastChapter 84 - Part C: Mesh or Muscle: When Primary Closure Is a LieIn this BoardsCast episode, we dive into Chapter 84 of Tobias & Johnston’s Veterinary Surgery (2nd ed) to tackle one of the most deceptively simple decisions in abdominal wall reconstruction: Can you actually close this primarily… or are you lying to yourself?When tension is high, tissue is weak, infection is present, or the defect is biomechanically doomed, primary closure becomes the wrong choice — and mesh or muscle flaps become the only path to success.You’ll learn:How to determine when primary closure is contraindicatedWhy tension kills tissue —...
2026-01-0614 minSimini Boards CastChapter 84 - Part A: The Abdominal Wall Is a Tension Problem, Not a Closure ProblemIn this episode of BoardsCast, we begin our exploration of Tobias Chapter 84 – Abdominal Wall Reconstruction and Hernias, reframing one of the most misunderstood principles in soft tissue surgery:The abdominal wall doesn’t fail because the surgeon can’t close it. It fails because the tissues cannot withstand the tension being placed on them.This episode breaks down the biomechanics, anatomy, and surgical strategy required to understand why closures break down — and how to prevent it.You’ll learn:Why abdominal wall reconstruction is fundamen...
2026-01-0616 minSimini Boards CastChapter 84 - Part B: Hernias Explained: Congenital, Traumatic, Incisional — Same Physics, Different StoriesIn this episode of BoardsCast, we continue our walk through Tobias Chapter 84 – Abdominal Wall Reconstruction and Hernias by breaking down the three major hernia categories surgeons must recognize immediately: congenital, traumatic, and incisional.Each looks different, each behaves differently — but all follow the same biomechanical rules:Defect size, tension forces, and tissue quality determine success or failure.You’ll learn:How congenital hernias form and why they’re often structurally weakWhy traumatic hernias defy anatomic rules and challenge surgical planningHow incisional hernias reveal mechanical failure—...
2026-01-0613 minSimini Boards CastChapter 83 - Part A: The Spleen Is Not the Problem: What Splenic Disease Actually MeansIn this BoardsCast episode, we open Chapter 83 of Tobias & Johnston’s Veterinary Surgery (2nd ed) and tackle one of the most misunderstood organs in small-animal surgery: the spleen. The spleen is rarely the true problem — it’s the manifestation of a systemic, vascular, or hematologic process. This episode breaks down why.You’ll learn:How splenic anatomy and blood flow shape its disease patternsWhy is splenic enlargement usually a secondary problemThe difference between nodular hyperplasia, hematoma, torsion, and neoplasiaWhat "double lesions" mean and why the boards love asking ab...
2025-12-3114 minSimini Boards CastChapter 83 - Part B: Splenic Masses: Benign, Malignant, or Lying to You?In Part B of our Chapter 83 series from Tobias & Johnston’s Veterinary Surgery (2nd ed), we step into one of the most anxiety-provoking topics in small animal surgery: splenic masses. Are they benign? Malignant? Hemangiosarcoma hiding inside a hematoma? Or is the spleen simply lying to you?This episode cuts through the confusion with a structured, surgeon-focused approach to diagnosing and managing splenic masses.You’ll learn:The true risk breakdown: benign vs malignant vs “impossible to tell”Why hemangiosarcoma mimics everything — and how it tricks cliniciansImaging patterns that help…...
2025-12-3113 minSimini Boards CastChapter 83 - Part C: The Bleeding Dog: Splenic Rupture, Hemoperitoneum, and ShockIn this episode of BoardsCast, we continue our deep dive into Tobias Chapter 83 – The Spleen, shifting our focus to the dog who arrives pale, weak, tachycardic, and bleeding into the abdomen. Splenic rupture and hemoperitoneum are emergencies, but not all bleeding dogs are the same, and not all of them should go straight to surgery.You’ll learn:The difference between traumatic vs spontaneous splenic ruptureHow to stabilize the bleeding dog without worsening the hemorrhageWhy some hemoperitoneum patients should not get immediate volume overloadHow to use FAST scans and PCV/TS tren...
2025-12-3114 minSimini Boards CastChapter 83 - Part D: To Cut or Not to Cut: Partial vs Total SplenectomyIn Part D of our Tobias Chapter 83 – Spleen series, we tackle one of the most essential surgical decisions in splenic disease: When should you perform a partial splenectomy vs a total splenectomy? The spleen is forgiving, redundant, and biologically fascinating — but your surgical strategy must match the underlying pathology.You’ll learn:The physiologic consequences of removing vs preserving splenic tissueWhy partial splenectomy is rarely indicated — but still worth knowing cold for boardsWhich conditions absolutely require total splenectomyVascular anatomy that determines whether preservation is even possibleHow to perform partial resection safely w...
2025-12-3115 minSimini Boards CastChapter 83 - Part E: The Splenic Trap: Why Surgeons Kill Patients After a ‘Successful’ SplenectomyIn this BoardsCast episode, we tackle one of the most dangerous — and least discussed — realities in small-animal soft tissue surgery: many splenectomy patients don’t die from the spleen… they die from what happens after the spleen is removed.Using Tobias Chapter 83 – Spleen as our framework, we break down the physiologic traps, hemodynamic crashes, and decision-making failures that turn an apparently successful splenectomy into a fatal outcome.You’ll learn:Why removing a bleeding organ does not fix the shock stateThe hemodynamic trap: sudden...
2025-12-3116 minSimini Boards CastChapter 26 - Part B: UMN vs LMN: The One Split That Predicts EverythingIn this BoardsCast episode, we continue our neurology fundamentals series by diving into one of the most powerful — and testable — distinctions in neuroanatomy: upper motor neuron (UMN) vs. lower motor neuron (LMN) dysfunction. Using Chapter 26 of Tobias & Johnston’s Veterinary Surgery (2nd ed) as our anchor, we break down how this single split explains tone, reflexes, gait, and prognosis.You’ll learn:How UMN and LMN pathways function and failWhat changes in tone, reflexes, and gait distinguish the twoWhy lesion localization depends on recognizing the patternHow to apply UMN vs LMN principles to spina...
2025-12-2212 minSimini Boards CastChapter 26 - Part C: The Spinal Cord Boxes: C1–C5, C6–T2, T3–L3, L4–S3 In this BoardsCast episode, we take the “UMN vs LMN” framework from Part B and apply it to the four major spinal cord regions surgeons must localize instantly. Using Chapter 26 of Tobias & Johnston’s Veterinary Surgery (2nd ed), we translate the entire spinal cord into four predictable “neuro boxes.”You’ll learn:The hallmark signs of each spinal cord segmentHow gait, posture, reflexes, and proprioception change with each regionWhy C6–T2 is the most confusing — and the one boards loveHow to distinguish L4–S3 LMN paresis from orthopedic weaknessWhen panniculus and cutaneous trunci testing truly helpHow to localize any cas...
2025-12-2214 minSimini Boards CastChapter 26 - Part D: Brain vs Spine: Forebrain, Brainstem, Cerebellum, Vestibular in Plain EnglishIn this BoardsCast episode, we wrap up our neuro-localization series by stepping out of the spine and into the brain. Using Chapter 26 of Tobias & Johnston’s Veterinary Surgery (2nd ed) as our guide, we translate neuroanatomy into simple, memorable, boards-ready patterns that distinguish forebrain, brainstem, cerebellar, and vestibular disease at a glance.You’ll learn:The hallmark signs of each intracranial region — in plain EnglishHow to differentiate seizures (forebrain) from weakness (brainstem)Why cerebellar disease looks dramatic but is rarely weakHow to split vestibular disease into central vs peripheralWhat cranial nerve deficits locali...
2025-12-2215 minSimini Boards CastChapter 26 - Part E: Cranial Nerves & The Two Reflexes Everyone Confuses: Menace vs PLRIn this BoardsCast episode, we continue our deep dive into Tobias Chapter 26: Neurologic Examination & Neuroanatomic Diagnosis, focusing on cranial nerve testing and the two most commonly misunderstood neurologic responses: the menace response and the pupillary light reflex (PLR).These two tests look similar — bright light, hand wave, eyeball reaction — but they assess completely different pathways. And boards LOVE to exploit that.You’ll learn:The functional roles of all 12 cranial nerves (in surgeon-friendly language)How to perform and interpret each cranial nerve testWhy the menace and PLR rarely “match” — and why that's n...
2025-12-2215 min
Simini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho & Soft Tissue — August 2025 EditionIn this Simini Equine Surgery Podcast episode, we explore two impactful studies from the August 2025 issue of Veterinary Surgery, offering data-driven refinement for both orthopedic and soft tissue equine procedures.We cover:✅ Ruspi et al. — A 20-year retrospective on medial condylar fractures in 150 racehorses. Despite historical concern, survival to discharge was 98.7%, long-term survival 93.3%, and 71% returned to racing. However, plating came with 7× higher complication risk (28% vs. 4%) than lag screws alone—shaping a critical discussion on fixation choice.✅ Barnett et al. — A prospecti...
2025-10-2413 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho Part 2 — August 2025 EditionIn this Simini Equine Surgery Podcast episode, we unpack two orthopedic studies from the August 2025 issue of Veterinary Surgery. These papers tackle both surgical mapping and cartilage regeneration—bringing fresh insights for accessing difficult anatomy and improving outcomes in mature horses.We cover:✅ Kerber et al. — A cadaveric study mapping the medial digital flexor tendon sheath (MDFTS) and evaluating the feasibility of needle endoscopy. Using a 2.4 mm needle scope and a two-portal technique, they successfully navigated this complex space and revealed multiple internal synovial folds that
2025-10-1712 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho Part 1 — August 2025 EditionIn this Simini Equine Surgery Podcast episode, we break down two clinical studies from the August 2025 issue of Veterinary Surgery, both centered on smarter, more effective approaches to fetlock joint management—from first-line lavage to deep-pocket fragment removal.We cover:✅ Beggan et al. — An ex vivo study comparing needle-through-and-through lavage (NTA) to endoscopic lavage (EL) for equine joints. In both the fetlock and DFTS, NTA cleared debris just as well—especially in the first 2 liters, and even outperformed EL in early-stage flushing. But remember: EL remai...
2025-10-1014 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Soft Tissue — July 2025 EditionIn this Simini Equine Surgery Podcast episode, we explore three practice-changing studies from the July 2025 issue of Veterinary Surgery. These investigations revisit long-standing protocols around anesthesia recovery, antibiotic use, and colic prevention—each bringing new clarity to what works, what doesn’t, and why it matters.We cover:✅ Lindqvist et al. — A prospective crossover study evaluating an adjustable ceiling during anesthesia recovery in horses. Recovery quality scores improved dramatically, but with modest physiologic stress trade-offs.✅ Sjöberg et al. — A large retrospective review of over 200 hospital-managed suture castrations in stallions. Th...
2025-08-0818 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho — July 2025 EditionIn this Simini Equine Surgery Podcast episode, we examine three orthopedic-focused studies from the July 2025 issue of Veterinary Surgery. From novel standing repair techniques to computer-assisted spinal fixation, this episode delivers fresh insights into return-to-work outcomes and high-stakes vertebral surgery.We cover:✅ Drahonovska et al. — Standing lag screw fixation for short, non-displaced frontal plane fractures of the dorsal P1. Six Thoroughbreds returned to racing with a 100% healing rate—highlighting a fast, effective alternative to GA for distal limb repair.✅ Esselman et al. — Return-to-performance outcomes in 34 Western performance horses with stifle cho...
2025-07-3119 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho & Soft Tissue— May 2025 EditionIn this Simini Equine Surgery Podcast episode, we explore two diagnostic turning points from the May 2025 issue of Veterinary Surgery. One challenges how we interpret synovial fluid after fracture. The other examines new intraoperative tools for evaluating bowel viability in colic surgery. Both studies offer critical precision in moments that matter.We cover:✅ Mason et al. — A retrospective review of synovial samples from 54 horses with acute intra-articular fractures. The study shows that nucleated cell counts, protein levels, and neutrophil percentages often mimic septic arthritis within hours of trauma—risking misdiagnosis and overtr...
2025-07-1716 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Soft Tissue— April 2025 EditionIn this episode of the Simini Equine Surgery Podcast, we shift from bone to soft tissue as we unpack three standout studies from the April 2025 issue of Veterinary Surgery. This episode focuses on improving tendon health through evidence-based strategies—from how we cool, to how we scope, to how we cut.We cover three tendon-focused studies:✅ McCarthy et al. — Compression cooling systems vs. ice boots in flexor tendon care. If you use standing bandages or cold therapy post-op, this one’s for you.✅ Breen et al. — Needle endoscopy fo...
2025-07-1019 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho — April 2025 EditionIn this episode of the Simini Equine Surgery Podcast, we dive into the April 2025 issue of Veterinary Surgery and explore two high-stakes orthopedic studies that redefine stabilization—one at the fetlock and pastern, and the other at the thoracolumbar spine.You’ll hear takeaways from two groundbreaking investigations:✅ Orozco Lopez et al. — Dual joint arthrodesis in racehorses with catastrophic suspensory failure. Discover how a human distal femur plate eliminated PIPJ subluxation—but didn’t eliminate infection risk.✅ Pezzanite et al. — A biomechanical comparison of pedicle screw rod constructs with and without inte...
2025-07-0312 minSimini Boards CastAngular Limb Deformities: Axis, Angles & CORA — Part IIn this first of a two-part BoardsCast series, we explore the foundational mechanics of angular limb deformity diagnosis and correction. Whether you’re preparing for boards or brushing up on osteotomy planning, this episode walks you step-by-step through:The difference between mechanical and anatomic axesJoint orientation angles (JFSA, LDFA, MPTA, JLCA) — and what “normal” looks likeHow to define and locate the CORA (Center of Rotation of Angulation)When to consider translation — and when it means you got the CORA wrongTools for recognizing and classifying single vs. multi-plane deformitiesWith clear diagrams and board-focused questions woven throughout, this episode is...
2025-05-3021 minSimini Boards CastPhyseal Fractures — Growth Plates Under PressureIn this episode of BoardCast, we shift focus to one of the most time-sensitive and high-stakes situations in small animal orthopedics: the open fracture.We explore:How force, strain, and biology interact at injury sitesWhy initial wound care sets the stage for surgical success (or failure)The Gustilo-Anderson open fracture classification — and what it predictsWhen to debride, what to remove, and when to stabilizeInternal vs. external fixation, and the role of bone graftingCommon complications and how to mitigate themA framework for real-world triage and revision planningThis episode offers practical, high-yield guidance on a topic wh...
2025-05-3019 minSimini Boards CastOrthopedic Healing Gone Wrong — Implant Failure, Non-Union & InfectionIn this episode of BoardCast, we break down what happens when internal fixation fails — and why.From the foundational forces at play to implant-specific failure modes, we explore the physics, mechanics, and clinical pitfalls behind:Tension band wiring and cerclage failureInterlocking nail fatigue and screw pulloutLag screw and plate biomechanicsLocking plate failure patterns in poor-quality boneThe concept of Elastic Plate Osteosynthesis for juvenilesAnd how to think critically about construct selection, strain distribution, and revision planningWe also test your knowledge with a board-style case on managing a comminuted fracture in poor-quality bone. If you’ve ever...
2025-05-3017 minSimini Boards CastExternal Skeletal Fixation: Frames, Forces & FailuresIn this packed episode of BoardCast, we tackle the engineering behind orthopedic repair — focusing on the forces that implants face, the frames surgeons build to control them, and how failures happen when mechanics are mismatched to biology.Topics covered:Stress-strain behavior of materials and how it dictates implant functionLoad-sharing vs. load-bearing constructs: when the implant helps, and when it carries everythingBiomechanics of cerclage wire, IM pins, interlocking nails, and locking platesPlate modes: compression, neutralization, buttress, and bridgingPlate-rod combinations and how to balance stiffness vs. healing motionA board-style case + flashcard-style recap to test retentionPerfect for an...
2025-05-3039 minSimini Boards CastInterlocking Nails: Why They Work (and When They Don’t)In this BoardCast episode, we break down the mechanics, applications, and complications of one of the most powerful tools in internal fracture fixation: interlocking nails.From biomechanical advantages to real-world complications, we cover:Why nails work so well for comminuted diaphyseal fracturesThe difference between static and dynamic locking — and when to use eachArea moment of inertia, angular stability, and central vs. eccentric loadingWhen ILNs outperform plates and pins — and when they don’tFailure risks, from screw misses to biological complicationsHow newer angle-stable designs may push outcomes even furtherThis is essential knowledge for any surgeon thinki...
2025-05-3018 minSimini Boards CastLocking Plates vs. Conventional Plates: Friction, Fixed Angles & Fracture RepairIn this episode of BoardCast, we dive deep into one of the most fundamental decisions in small animal fracture repair: choosing between conventional bone plates and locking plate systems.Through clear mechanical breakdowns and real-world case thinking, we explore:The core engineering behind each fixation methodWhy screw purchase and bone quality matter (or don’t)Eccentric vs. central loading and how implants fail under stressThe biomechanics of interlocking nails and how they differWhat implant to choose for a given fracture pattern and patient conditionThe critical role of construct design in clinical successIf you're preparing fo...
2025-05-2918 minSimini Boards CastPlate Application Strategy: Forces, Failures & Fixation FundamentalsIn this high-yield episode of BoardCast, we explore the strategy behind plate application — from choosing the right plate to understanding how and why implants fail.You’ll learn:The physics of tension vs. compression and why placement mattersWorking length: what it is, how it affects compliance, and when flexibility helps or hurtsBiomechanics of different plating techniques: compression, neutralization, bridging, and elastic osteosynthesisFailure modes: bending, fatigue, screw pullout — and how locking plates shift the riskHow interlocking nails stack up against plates and when to combine constructsThis is not just for board prep — it’s a must-have...
2025-05-2913 minSimini Surgery Review: Equine EditionVeterinary Surgery Deep Dive: Equine Ortho — January 2025 EditionIn this Equine-Ortho Deep Dive, we explore three surgical innovations targeting the distal limb — all featured in top-tier journals and focused on practical gains in precision, stability, and recovery.In this episode, we cover:Accuracy gains with a vertek aiming device (VAD) during computer-assisted surgery of the distal sesamoid boneA new compression aiming device for navicular bone fractures using standard radiographyOutcomes from standing sedation surgery for hoof wall masses like keratomas — including surgical technique and long-term recovery dataIf you're working on lower limb cases in horses, this update brings clarity to both novel devices and...
2025-05-2321 min