Use of a 2/3 Free Vascularized Fibula Flap for Tibiofibular Bone Defect Reconstruction

Case: A 40-year-old man with a tibiofibular bone defect caused by infection was treated using a 2/3 free vascularized fibula flap, which preserved 1/3 of the continuous periosteum and cortex of the fibula at the donor site, allowing for regeneration of fibular bone defect caused by bone harvesting procedure. At 16 months of follow-up, his bilateral lower limb function had recovered well. Conclusions: A 2/3 free vascularized fibula flap is an effective treatment approach for long-segment bone defects. This technique not only provides sufficient mechanical strength and stability at the defect site but also facilitates regeneration of the donor site fibula.