The authors performed a case-control study to investigate the associations between wrist and hand dimensions and carpal tunnel syndrome. The wrists and hands of 50 patients with carpal tunnel syndrome and 50 matched controls were measured. The mean patient age, height, weight, and body mass index were comparable between groups. The authors found only a small difference in wrist dimensions between groups and no difference in hand dimensions. The standard deviations were too great and the study numbers were too small to draw any definitive conclusions.
Numerous patient factors have been associated with carpal tunnel syndrome, including diabetes, increased body mass index, and a narrowed carpal canal. The results from this study support the argument that surface measurements of the wrist and hand are not persuasive findings when providing an opinion on the etiology of carpal tunnel syndrome.