Bleecker M L
Johns Hopkins University School of Medicine, Department of Neurology, Francis Scott Key Medical Center, Baltimore, MD 21224.
J Hand Surg Am. 1987 Sep;12(5 Pt 2):845-8. doi: 10.1016/s0363-5023(87)80246-0.
Carpal canal size was examined as a risk factor associated with carpal tunnel syndrome in the workplace. Seven of 14 electricians had symptoms of carpal tunnel syndrome. When cross-sectional areas were measured by computed tomography (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). Subjects with a subclinical syndrome had an area of 1.83 +/- 0.22 cm2, which was similar to the group with symptoms. Wrist circumference was not a predictor of the smallest carpal canal area. Unusual bony and soft tissue structures within the carpal canal were easily identified with CT.
腕管大小作为与工作场所腕管综合征相关的风险因素进行了检查。14名电工中有7人有腕管综合征症状。通过计算机断层扫描（CT）测量横截面积时，受影响工人的横截面积为1.75±0.21平方厘米；对照值为2.53±0.15平方厘米（p<0.05）。有亚临床综合征的受试者面积为1.83±0.22平方厘米，与有症状组相似。腕围不是最小腕管面积的预测指标。腕管内不寻常的骨骼和软组织结构通过CT很容易识别。
