The Use of Allograft Shell With Intramedullary Vascularized Fibula Graft for Intercalary Reconstruction After Diaphyseal Resection for Lower Extremity Bony Malignancy

Background: Reconstruction after excision of the femur and tibia malignancy is a challenging issue for the reconstructive surgeon The combined use of a vascularized fibular flap and allograft can provide a reliable reconstructive option This article describes the authors' experience with this technique for the treatment of large-segmental hone defects alter intercalary resection of lower extremity malignancy Methods: From 2003 to 2008, 11 patients that hail intercalary resection of lower extremity malignancy underwent reconstruction with an allograft and vascularized fibular construct Time to union was recorded through evaluation of plain radiographs Patients were examined clinically and radiographically and were assessed functionally with MSTS score Result: The average age at time of operation was 18 5 years The mean follow-up utile was 34 1 months The oncology result was continuous disease free in 7 patients. no evidence of disease in 2, alive with disease in I. and died of disease in I Free vascularized fibula flap was used in 7 patients and ispilateral pedicle vascularized fibula in 4 The average length of the resected segment was 12 1 cm and that of the fibula flap was I 6 2 cm The primary unions were achieved in all patients except one with tibia reconstruction The average time for bone union was 5 4 months at fibula host junction and It 8 months at allograft-host junction There were no allograft fractures mid no infections Five patterns had 7 local complications The MSTS average score was 91 8% at final follow-up The mean time of weight-bearing was 12 4 months Conclusions: Intramedullary fibular flap in combination with massive allografts provide an excellent option for reconstruction of large-bony defects after lower extremity malignancy extirpation The viability of the fibula is a cornerstone in success of reconstruction that prevents allograft nonunion and result in decreased time to hone healing, leading to earlier patient recovery and mum of function J Suns; Oncol 2010,102 368-374 (C) 2010 Wiley-Liss. Inc