Eversmann W W, Ritsick J A
J Hand Surg Am. 1978 Jan;3(1):77-81. doi: 10.1016/s0363-5023(78)80119-1.
A prospective study of 47 patients with 51 hands treated for carpal tunnel syndrome by surgical release of the deep transverse carpal ligament was performed using intraoperative motor nerve conduction latency measured over a standard distance across the carpal tunnel both before and after release of the ligament. The results of intraoperative conduction latencies indicated a dramatic and immediate reduction in the conduction latency across the carpal canal in all but seven patients, two of whom had diabetes. When the results were subjected to statistical analysis, they were significant (P is equal to 0.00001). Although further studies are indicated, these data suggest that a rapidly reversible mechanical or metabolic block, such as ischemia in the segment of the median nerve, may be responsible for the symptoms of carpal tunnel syndrome.
对47例患者的51只手进行了一项前瞻性研究，这些患者因腕管综合征接受了手术松解腕横深韧带治疗。术中在腕横韧带松解前后，均在腕管标准距离上测量运动神经传导潜伏期。术中传导潜伏期结果显示，除7例患者外，所有患者腕管内的传导潜伏期均急剧且立即缩短，其中2例患有糖尿病。对结果进行统计分析时，差异具有统计学意义（P等于0.00001）。尽管需要进一步研究，但这些数据表明，一种快速可逆的机械性或代谢性阻滞，如正中神经节段的缺血，可能是腕管综合征症状的原因。
