Belen J
Am J Phys Med. 1985 Feb;64(1):17-23.
A standardized method of obtaining orthodromic distal sensory latencies of the medial and lateral plantar nerves is presented. Forty-one normal volunteer subjects were tested. Stimulation is carried out on the plantar aspect of the base of each toe using ring electrodes. Surface recording electrodes are placed posterior to the medial malleolus over the tarsal tunnel at points measuring 14, 16, 18 and 20 centimeters from the dorsum of the base of the great toe. Sixty-four evoked responses were averaged utilizing an electronic averaging technique and temperature was maintained at 31 degrees centigrade. Mean and standard deviation values of the distal sensory latency are reported for each toe. The reliability and ease in performance of these conduction studies will make them necessary and useful aids in the electrodiagnostic evaluation of tarsal tunnel syndrome, peripheral neuropathies and other local neuropathic conditions. Case studies are presented demonstrating the usefulness of this testing.
本文介绍了一种获取足底内侧和外侧神经顺向远端感觉潜伏期的标准化方法。对41名正常志愿者进行了测试。使用环形电极在每个脚趾基部的足底进行刺激。表面记录电极置于内踝后方的跗管上，距拇趾基部背侧14、16、18和20厘米处。利用电子平均技术对64次诱发反应进行平均，并将温度维持在31摄氏度。报告了每个脚趾的远端感觉潜伏期的平均值和标准差。这些传导研究的可靠性和操作简便性将使其成为跗管综合征、周围神经病和其他局部神经病变的电诊断评估中必要且有用的辅助手段。文中还给出了病例研究以证明该测试的实用性。
