Below-knee amputation is the treatment of choice for distal tibia malignancies, considering the specific anatomic features of the distal leg and ankle. However, advances in imaging modalities and adjuvant therapies and improved surgical techniques have made limb salvage surgery increasingly possible. The distal tibia is an uncommon location for malignant bone tumors, and there is limited information about limb salvage and reconstruction. Currently, 3-dimensional printed implants may successfully address reconstruction challenges after tumor resection. We present a patient with high-grade osteosarcoma of the distal tibia who underwent limb salvage and distal tibia and ankle joint replacement with a 3-dimensional printed endoprosthesis. [Orthopedics. 20XX;XX(X):xx–xx.]

考虑到腿和脚踝远端的具体解剖特征，膝下截肢术是胫骨远端恶性肿瘤的首选治疗方法。然而，影像学和辅助治疗的进步以及手术技术的改进使得保肢手术越来越成为可能。胫骨远端是恶性骨肿瘤的罕见部位，关于保肢和重建的信息有限。目前，3 维打印植入物可以成功解决肿瘤切除后的重建挑战。我们介绍了一名患有胫骨远端高度恶性骨肉瘤的患者，该患者接受了保肢术以及使用 3 维打印内置假体进行胫骨远端和踝关节置换术。[骨科。20XX;XX(X):xx–xx.]