We conducted a systematic review to determine whether the literature supports the use of free vascularised fibular graft (FVFG) over other salvage procedures for the treatment of avascular necrosis (AVN) of the femoral head, and if there are patient-specific and defect-specific factors that may predict better outcomes after FVFG. Fifteen total studies were identified for inclusion. Three comparative studies showed an overall statistically significant superiority of FVFG over NVFG; two comparative studies demonstrated FVFG better than core decompression. One study show a better but not statistically significant superiority of FVFG comparing with vascularised iliac pedicle bone graft procedures, likely due to small sample size. This review suggests that vascularised fibular grafting is a better treatment option than core decompression and nonvascularised fibular grafting.
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