The Precise Localization in Peripheral Nerve Injuries. Preoperative and Postoperative Inching Technique.:Preoperative and Postoperative Inching Technique

概要

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With serial stimulation of the ulnar nerve at the elbow the compound action potential and sensory nerve action potential were recorded using "inching techique" in 10 normal subjects and 15 patients with the cubital tunnel syndrome.The motor axons and sensory axons normally showed a predictable latency change of 0.13 to 0.24ms/cm and 0.14 to 0.21ms/cm as the stimulus site was moved proximally in 1cm increments.Preoperatively in 13 of the 15 patients abnormal conduction was sharply localized from 1cm proximal to the medial epicondyle to 3cm distal. Then intraoperative inching technique performed in 9 patients. The findings were as follows.1) Conduction abnormalities corresponded to the compressive lesions and localized.2) Preoperative conduction abnormalities corresponded to intraoperative ones.
西日本整形・災害外科学会の論文