Reconstruction of Large Bone Defects: From Debridement to Masquelet and Bone Transport

Large bone defects are rarely just a problem of missing bone. In high-energy trauma they come together with contaminated wounds, compromised soft tissue, infection risk and difficult decisions about whether—and how—the limb can be reconstructed.

Plastic and reconstructive surgeon Llewellyn Thomas presents the orthoplastic philosophy used in complex extremity reconstruction. He starts with the biology of traumatic bone loss and chronic osteomyelitis, then moves through debridement, characterization of the defect, stabilization and the practical factors that shape a definitive reconstructive plan.

The lecture compares distraction osteogenesis and fine-wire bone transport with the two-stage Masquelet induced-membrane technique, including where each approach becomes difficult and why anatomy, follow-up capability, infection and soft-tissue requirements matter as much as defect length. Thomas also discusses shortening, vascularized fibula reconstruction, later re-lengthening and other options that can expand the reconstructive armamentarium.

Several small operative details make this particularly useful for trainees: how viable bone is judged during debridement, why chronic osteomyelitis sampling demands discipline, what can go wrong around infected metalwork, and how seemingly minor choices during the Masquelet stages can influence the environment for graft incorporation.

The discussion closes with real-world questions on limb shortening, orthotic compensation and reconstruction when a patient has simultaneous abdominal fistulas and a major extremity defect—a reminder that these cases are ultimately solved by strategy and multidisciplinary coordination, not by a single technique.