Biomechanical Evaluation for Fibular Allograft Combined with Impaction Bone Grafting in Treating the Femoral Head Necrosis: Thorough Debridement or not?

摘要

Fibular allograft combined with impaction bone grafting is an effective hip preserving method that be employed for avoiding the total hip replacement in the early stage of the femoral head necrosis. However, whether thorough debridement should be used with FAIBG is controversial. Thorough debridement can better protect the anterolateral column and reduces the necrosis area of stress concentration phenomenon compared to partial debridement theoretically, but it will bring bigger trauma region and higher incidence of complications, and require longer surgery recovery time. In most cases, the choice is made based on the experience and preference of different surgeons. This study first proposes employing computational biomechanical technology to explore the different mechanical performance of FAIBG with or without thorough debridement, which provides biomechanical basis for choosing the proper treatment in clinic.