Description

In this BoardsCast episode, we dive deep into distraction osteogenesis—a biologically elegant, mechanically precise way to grow new bone. This is more than bone healing. It's bone engineering, and knowing how it works is critical for board prep, complex clinical cases, and surgical innovation.

We break down the phases, principles, and pitfalls of this powerful orthopedic strategy, including when and how it works—and what happens when you violate the rules of biology.

You’ll learn:

• How intramembranous ossification—not callus formation—drives distraction-based bone growth
• Why 1 mm/day, split into 0.25 mm increments, is the golden rule for lengthening
• What goes wrong when you distract too fast (fibrous tissue), or too slow (premature consolidation)
• When to use this method for limb length discrepancies, critical bone defects, and deformity correction
• How strain theory, viscoelasticity, anisotropy, and stress relaxation all inform this process

Whether you’re reviewing the Ilizarov method or planning a novel reconstruction, this episode equips you to do lengthening the right way.

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