Background: The position of metacarpophalangeal (MCP) joints may be an important factor affecting the efficacy of splinting in patients with carpal tunnel syndrome (CTS).
Objective: The aim of the present study was to compare the efficacy of a neutral volar static wrist splint with a neutral volar static wrist and MCP splint in patients with CTS.
Methods: Fifty-four hands were included into the study. A neutral volar static wrist splint was given to the symptomatic hands of the patients in group 1 while a neutral volar static wrist and MCP splint was given to the symptomatic hands of the patients in group 2. Evaluation parameters were Visual Analog Scale for pain severity (VASp), grip strength, pinch strength, electrophysiologic tests and CTS Questionnaire (CTSQ) at baseline and four weeks later.
Results: At baseline there was no difference between groups. The intergroup comparison of the improvement showed significant differences in VASp at rest, grip strength, pinch strength and CTSQ functional capacity scores between groups in favor of wrist MCP splint. Although there were significant improvements with regard to sensory amplitude and motor latency in both groups after therapy, the differences between groups were not at the level of significance.
Conclusions: The position of MCP joints seems to be an important factor for the treatment of CTS and should be considered while prescribing a splint to the patients with CTS.
Keywords: Carpal tunnel syndrome; electrophysiological tests; metacarpophalangeal joint; splint; wrist joint.