Functional Tests for Quantifying Recovery following Carpal Tunnel Surgery

Abstract

This study considered two computer-controlled tests for quantifying functional deficits in carpal tunnel syndrome (CTS), known as the Wisconsin Test battery. The gap detection sensory test quantifies dynamic tactile inspection thresholds for areas of the hand innervated by the median nerve. The rapid pinch and release psychomotor test measures the initiation and control of specific muscles innervated by the median nerve motor branch. Subjects were all patients who had undergone carpal tunnel surgical procedures. To date, a total of 30 subjects have been tested pre and post surgery. All subjects underwent a physical examination and nerve conduction studies, completed a symptom survey, and were administered the Wisconsin Test battery prior to surgery. Subjects were tested immediately prior to surgery and again six weeks following surgery. The data indicated that both psychomotor and sensory function for the surgical hands markedly improved postoperatively, whereas the non-surgical hands did not show similar improvements. These tests may be useful to quantify recovery and function following CTS treatments.