Bleecker M L, Bohlman M, Moreland R, Tipton A
Neurology. 1985 Nov;35(11):1599-604. doi: 10.1212/wnl.35.11.1599.
Carpal canal size was examined as a risk factor associated with carpal tunnel syndrome in the workplace. Seven of 14 electricians had symptomatic carpal tunnel syndrome. On measuring cross-sectional areas by CT, affected workers had a cross-sectional area of 1.75 +/- 0.21 cm2; control values were 2.53 +/- 0.15 cm2 (p less than 0.05). Individuals with a subclinical syndrome had an area of 1.83 +/- 0.22 cm2, similar to the symptomatic group. Wrist circumference was not a predictor of smallest carpal canal area. Unusual bony and soft tissue structures within the carpal canal were easily identified with CT.
研究了腕管大小作为工作场所中与腕管综合征相关的风险因素。14名电工中有7人患有症状性腕管综合征。通过CT测量横截面积时，患病工人的横截面积为1.75±0.21平方厘米；对照值为2.53±0.15平方厘米（p<0.05）。患有亚临床综合征的个体的面积为1.83±0.22平方厘米，与有症状组相似。腕围不是腕管最小面积的预测指标。通过CT很容易识别腕管内异常的骨骼和软组织结构。
