PDF(Pubmed)
Abstract：
The lateral talar dome osteochondral fracture has been described as shallow or wafer-shaped and is more likely to have an associated flake fracture than medial injuries. Displacement into the extracurricular space, however, is a rare occurrence. We present a case of ankle trauma with persistent pain and edema. A CT scan revealed a displaced osteochondral fracture of the lateral dome of the talus and an avulsion fracture of the tip of the medial malleolus. After appropriate dissection and exposure, the fragment was found below the skin, outside the ankle joint capsule. The fragment was fixed to the neck of the talus, and the deltoid ligament and anterior inferior tibiofibular ligament were repaired. After a one-year follow-up, full recovery was achieved without pain, stiffness, or osteonecrosis of the displaced fragment. Although the extra-articular displacement of lateral talar dome osteochondral fractures is rare, it should be considered when assessing ankle trauma.
摘要：
距骨穹顶骨软骨外侧骨折已被描述为浅或片状，并且比内侧损伤更可能发生相关的片状骨折。移入课外空间，然而,是罕见的。我们介绍了一个伴有持续性疼痛和水肿的踝关节创伤病例。CT扫描显示距骨外侧圆顶移位的骨软骨骨折和内踝尖端的撕脱性骨折。经过适当的解剖和暴露，碎片是在皮肤下面发现的,在踝关节囊外面.碎片固定在距骨的脖子上,修复三角肌韧带和胫腓前下韧带。经过一年的随访,完全康复，没有疼痛，刚度,或移位碎片的骨坏死。虽然外侧距骨软骨骨折的关节外移位是罕见的，在评估踝关节创伤时应考虑.
