Friendly Foot Care, PC, 50 W. 94th Place, Crown Point, IN, 46307, USA.
Acta Neurochir (Wien). 2020 Jun;162(6):1439-1444. doi: 10.1007/s00701-020-04344-3. Epub 2020 Apr 23.
Common fibular (peroneal) nerve (CFN) entrapment is the most frequent nerve entrapment in the lower extremity. It can cause pain, sensory abnormalities, and reduced ability to dorsiflex the foot or a drop foot. A simple test to assist with diagnosis of CFN entrapment is described as an adjunctive clinical tool for the diagnosis of CFN entrapment and also as a predictor of successful surgical decompression of a CFN entrapment.
The test, a lidocaine injection into the peroneus longus muscle at the site of a common fibular nerve entrapment, was studied retrospectively in 21 patients who presented with a clinical suspicion of CFN entrapment. Patients ages ranged from 17 to 71 (mean 48.5).
The lidocaine injection test (LIT) was positive in 19 patients, and of these, 17 underwent surgical decompression and subsequently experienced improved ability to dorsiflex their foot and reduced sensory abnormalities.
The LIT is a simple, safe adjunctive test to help diagnose and also predict a successful outcome of surgical decompression of a CFN entrapment. The proposed mechanism of action of the LIT could lead to new, non-surgical treatments for CFN entrapment.
腓总神经（CFN）卡压是下肢最常见的神经卡压。它可导致疼痛、感觉异常以及足背屈或足下垂能力下降。描述了一种简单的测试来辅助 CFN 卡压的诊断，该测试作为 CFN 卡压诊断的辅助临床工具，也可预测 CFN 卡压的手术减压是否成功。
对 21 例临床怀疑 CFN 卡压的患者进行回顾性研究，该测试为在 CFN 卡压部位的腓骨长肌内注射利多卡因。患者年龄 17 至 71 岁（平均 48.5 岁）。
19 例患者的利多卡因注射试验（LIT）阳性，其中 17 例行手术减压，随后足背屈能力改善，感觉异常减少。
LIT 是一种简单、安全的辅助测试，可以帮助诊断和预测 CFN 卡压手术减压的成功结果。LIT 的作用机制可能为 CFN 卡压提供新的非手术治疗方法。
