Bone Formation in Limb Lengthening Over Nails. A New Way of Healing in Distraction Osteogenesis, the ‘Multilayer Concentric’ Healing Pattern

Description

This lecture presents advanced techniques in bone lengthening surgery developed by pioneering surgeon Zakharov, who introduced distraction osteogenesis using a stable external fixator without the need for grafting. The speaker discusses the importance of preserving the periosteum during these procedures, backed by clinical studies showing significant bone gain post-surgery. Observations during the healing process reveal rapid formation of callus tissue that contributes to bone regeneration, emphasizing the role of vascular supply and mechanical stability in this intricate process. With the aid of advanced imaging technologies, like cone beam CT scans, the lecture illustrates the stages of bone healing, including the formation of concentric periosteal bone islands and the dynamics of bone remodeling over time. Moreover, the presentation concludes with practical advice for optimizing bone healing, stressing the necessity of preserving bone-forming cells and ensuring proper vascular supply through increased muscle activity and mechanical loading. This expertise aims to improve clinical outcomes in patients undergoing lengthening procedures.

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