Nikolopoulos Dimitrios, Safos George, Sergides Neoptolemos, Safos Petros
Orthopaedic Department, Central Clinic of Athens, 31 Asklepiou Street, 10680 Athens, Greece.
Orthopaedic Department, Ikaria General Hospital, 83302 Ikaria, Greece.
Case Rep Orthop. 2015;2015:861697. doi: 10.1155/2015/861697. Epub 2015 Jan 6.
Lower extremities peripheral neuropathies caused by ganglion cysts are rare. The most frequent location of occurrence is the common peroneal nerve and its branches, at the level of the fibular neck. We report the case of a 57-year-old patient admitted with foot drop, due to an extraneural ganglion of the upper tibiofibular syndesmosis, compressing the deep branch of the peroneal nerve. Although there have been many previous reports of intraneural ganglion involvement with the lower limb nerves, to our knowledge, this is the second reported occurrence of an extraneural ganglion distinctly localized to the upper tibiofibular syndesmosis and palsying deep peroneal nerve. The diagnosis was made preoperatively using MRI. The common peroneal nerve and its branches were recognized and traced to its bifurcation during the operation, and the ganglion cyst was removed. Two months after surgery, the patient was pain-free and asymptomatic except for cutaneous anesthesia in the distribution of the deep peroneal nerve.
由腱鞘囊肿引起的下肢周围神经病变较为罕见。最常见的发病部位是腓总神经及其分支，位于腓骨小头水平。我们报告一例57岁患者，因上胫腓联合处的神经外腱鞘囊肿压迫腓深神经而出现足下垂入院。尽管此前已有许多关于神经内腱鞘囊肿累及下肢神经的报道，但据我们所知，这是第二例明确位于上胫腓联合处并导致腓深神经麻痹的神经外腱鞘囊肿病例。术前通过磁共振成像（MRI）做出诊断。术中识别并追踪腓总神经及其分支直至其分叉处，切除腱鞘囊肿。术后两个月，患者除腓深神经分布区域皮肤感觉麻木外，无疼痛且无症状。
