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Abstract：
Enchondroma is a common benign chondrogenic tumor, which typically occurs in the short bones of hands and feet. However, when affecting the long bones, it is difficult to rule out the low-grade chondrosarcoma, called atypical cartilaginous tumor (ACT), because of the highly similar clinical and radiologic features. This study reports 2 patients with advanced knee osteoarthritis, scheduled for total knee arthroplasty, who had a distal femoral lesion on imaging suggestive of ACT/enchondroma. We believe that the treatment of these patients could be a challenge for arthroplasty surgeons. This is because it might be difficult to decide whether a periarticular chondral tumor of an osteoarthritic knee is malignant and changes the plan. In this report, we described our approach to address both knee osteoarthritis and ACT/enchondroma of the distal femur. To the best of our knowledge, this issue has not yet been discussed in the literature.
摘要：
软骨瘤是一种常见的良性软骨源性肿瘤，通常发生在手脚的短骨中。然而,当影响长骨时，很难排除低级软骨肉瘤，称为非典型软骨肿瘤（ACT），因为临床和放射学特征非常相似。本研究报告2例晚期膝骨关节炎,计划进行全膝关节置换术，影像学上有股骨远端病变，提示ACT/内生软骨瘤。我们认为，这些患者的治疗可能是关节成形术外科医生的挑战。这是因为可能难以确定骨关节炎膝关节的关节周围软骨肿瘤是否恶性并改变计划。在这份报告中,我们描述了我们治疗膝关节骨关节炎和股骨远端ACT/内生软骨瘤的方法。据我们所知,这个问题还没有在文献中讨论过。
