Sensibility testing in patients with carpal tunnel syndrome

R. M. Szabo, R. H. Gelberman, M. P. Dimick

Research output: Contribution to journalArticlepeer-review

134 Scopus citations


We evaluated the sensibility of the hand preoperatively and at intervals postoperatively in twenty-three hands of twenty patients with idiopathic carpal-tunnel syndrome who underwent carpal tunnel release. Tests of sensibility included the threshold tests (vibrometry, 256-cycles-per-second vibration, and Semmes-Weinstein monofilaments) and one innervation-density test (two-point discrimination). In addition the wrist-flexion test, nerve-percussion test, and tourniquet test were performed preoperatively. Only five of the twenty-three hands had abnormal two-point discrimination and each of these also had markedly abnormal threshold-test values. Nineteen of twenty-three hands preoperatively had decreased sensibility detected by both Semmes-Weinstein monofilament testing and vibrometry. Six weeks after carpal tunnel release, all of the hands demonstrated improvement on threshold testing, and 65 per cent had normal values.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalJournal of Bone and Joint Surgery - Series A
Issue number1
StatePublished - Jan 1 1984


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