Matsubara Maoki, Yagi Kenji, Hemmi Shoji, Uno Masaaki
Departments of1Neurosurgery, and.
2Neurology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
J Neurosurg Case Lessons. 2023 Jun 12;5(24). doi: 10.3171/CASE2387.
The sural nerve (SN) is a cutaneous sensory nerve that innervates the posterolateral side of the distal third of the leg and lateral side of the foot. The SN has wide variation in its course and is fixed to the subcutaneous tissue and superficial fascia. Idiopathic spontaneous SN neuropathy is rarely surgically treated because of the difficulty in detecting SN entrapment.
Herein, the authors present a rare case of surgically treated spontaneous SN neuropathy. A 67-year-old male patient presented with right foot pain for several years. Magnetic resonance imaging and ultrasonography showed SN entrapment slightly proximal and posterior to the lateral malleolus. A nerve conduction study showed SN disturbance. After undergoing neurolysis, the patient's foot pain was alleviated.
Idiopathic SN neuropathy can be treated surgically when SN entrapment is detected with comprehensive evaluation methods.
腓肠神经（SN）是一条皮感觉神经，支配小腿远端三分之一的后外侧和足部外侧。腓肠神经走行变异较大，且固定于皮下组织和浅筋膜。特发性自发性腓肠神经病变因难以检测到腓肠神经卡压，很少进行手术治疗。
在此，作者报告一例罕见的经手术治疗的自发性腓肠神经病变病例。一名67岁男性患者，右足疼痛数年。磁共振成像和超声检查显示在踝关节外侧稍近端和后方存在腓肠神经卡压。神经传导研究显示腓肠神经功能障碍。经神经松解术后，患者足部疼痛缓解。
当通过综合评估方法检测到腓肠神经卡压时，特发性腓肠神经病变可进行手术治疗。
