Ilizarov-Based Segmental Transport for Reconstruction of an Infected Post-Chondrosarcoma Tibial Defect Following Failed Allograft: A Case Report

Chondrosarcomas, malignant bone tumors characterized by a cartilaginous matrix, pose significant treatment challenges due to their resistance to chemotherapy and the high risk of complications following surgical resection. This case report describes the successful management of a 61-year-old male with a 9 cm tibial defect resulting from an infected, failed massive allograft following low-grade chondrosarcoma resection. A two-stage surgical protocol was employed, initially focusing on infection control and debridement, followed by segmental bone transport using the Ilizarov method for reconstruction. An antibiotic-loaded cement spacer was utilized to manage dead space and chronic infection. Post-operative follow-up demonstrated successful bone consolidation, preservation of tibial alignment, and absence of infection or tumor recurrence over two years. This case underscores the efficacy of a staged approach combining bone transport and antibiotic spacers in managing complex tibial defects in orthopedic oncology.