Soft-Tissue Optimization of Limb Salvage With Knee Endoprosthesis

作者：Theresa Y. Wang, John P. Dormans, Benjamin B. Chang · 发表于：Annals of Plastic Surgery · 年份：2011 · DOI：10.1097/sap.0b013e3182223d5b · 被引用次数：18 · 研究领域：Sarcoma Diagnosis and Treatment、Reconstructive Surgery and Microvascular Techniques、Knee injuries and reconstruction techniques

PURPOSE: Limb salvage in bone sarcomas requires resection and joint and soft-tissue reconstruction. Suboptimal coverage can lead to prosthesis infection, subsequent hardware exposure, or loss with eventual amputation. In the pediatric sarcoma population, it is essential to not only have viable soft-tissue coverage but one that minimizes donor site morbidity and maximizes function and growth over time. METHODS: This is a retrospective review of all sarcoma patients with primary gastrocnemius and soleus muscle flap coverage of modular knee endoprosthesis over the 10-year period between 1997 and 2007. All patients had resection of the skin at the tibial biopsy site prior to their primary tumor resection surgery. After resection of the knee joint and proximal tibia with clear margins, the bony defect was reconstructed with an endoprosthesis. The gastrocnemius and soleus muscles were then independently rotated to cover the prosthesis and the patellar tendon. RESULTS: Eleven patients (10 male, 1 female) with an average age of 13 years (range, 10-17) underwent resection of proximal tibia. Pathology included osteosarcoma in 9 patients, Ewing in 1, and spindle cell sarcoma in 1 patient. All patients had endoprosthetic coverage by gastrocnemius and soleus flaps; 4 patients had additional split-thickness skin graft over the gastrocnemius. The average level of tibial resection was 16.5 cm distal to the articular surface of the proximal tibia. Mean soft-tissue mass volume resected with bo...