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Abstract
Background: Carpal tunnel syndrome (CTS) is an entrapment neuropathy of the median nerve at wrist. It{u2019}s one of the most common peripheral nerve disorders. Purpose of study: To investigate influence of wrist and fingers position on median nerve distal latency responses in carpal tunnel syndrome. Design of the study: Cross-sectional design. Subjects: 75 participants aging between 30 to 50 years from both sexes were randomly assigned into 2 study groups (group A contained 60 healthy subjects and group B contained 15 CTS patients). Methods: Measurements of median nerve motor distal latency using nerve conduction study from neutral, 60 {u00BA} wrist extension and 60{u00BA} wrist flexion, measurements of median nerve sensory distal latency from fingers extension and fingers flexion. Results: Wrist extension was displayed as the most convenient position for both groups, as it showed significant difference when compared with other wrist positions. Comparison of each wrist position between both groups showed significant difference. Fingers extension position was displayed as the most convenient position in both groups as it showed significant difference when compared with fingers flexion position .There was a significant difference between fingers extension position when both groups were compared as well as significant difference between fingers flexion position when both groups were compared. Conclusion: Wrist and fingers extension position were the most convenient position for assessing median nerve. Both sensory and motor distal latencies were delayed in CTS patients compared with normal subjects. Wrist and fingers extension position are the most convenient position for management of patients complaining of CTS. Also preventing repeated and prolonged wrist and fingers flexion may reduce risk of CTS