目的：探讨定制人工膝关节假体在膝关节周围恶性骨肿瘤保肢治疗中的临床效果。
Objective: to investigate the clinical results and value of custom made artificial total knee prosthesis in limb sparing surgery for malignant bone tumors around the knee joint.
目的：探讨延迟诊断的动脉下段损伤的保肢治疗。
Objective: To explore limb salvage treatment for popliteal artery inferior segment trauma with delayed diagnosis.
方法：对11例四肢骨肉瘤患者进行保肢治疗，其中11例进行了术前、后新辅助化疗。
Method: 11 patients with the diagnosis of osteosarcomas of the extremities were treated with adjuvant chemotherapy and limb salvage surgery.
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