Correlation of Ultrasonography with the Nerve Conduction Study in Carpal Tunnel Syndrome of Koreans |
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Abstract |
Objectives: To assess correlation between anteroposterior diameter of the median nerve at the wrist and parameters of nerve conduction study in patients with carpal tunnel syndrome(CTS). Methods: Electrodiagnostic test was performed in 68 hands of 34 patients who have paresthesia and weakness in fingers and palm or wake up in the night due to paresthesia and 30 hands of 15 healthy women who have no symptom of CTS. 34 patients have abnormal findings of 57 hands and 15 healthy women have normal findings of 30 hands in electrodiagnostic test. Ulrasonography was performed in 57 hands of 34 patients and 30 hands of 15 healthy women. The anteroposterior diameter of median nerve was measured using ultrasonography in subjects consisting of 30 hands of 15 healthy wemen. The anteroposterior diameter of median nerve was measured using ultrasonography in subjects consisting of 57 hands of 34 patients, who is confirmed to by clinical symptoms, electrodiagnostic tests. We compared the anteroposterior diameter of median nerve with the electrodiagnostic data. Results: There were statistical differences in the anteroposterior diameter of the median nerve for healthy wemen and patients with CTS. The anteroposterior diameter of the median nerve at the entrance to the carpal tunnel was found to correlate with the distal motor latency of median nerve. Conclusion: Although ultrasonography is not a confirmative method of diagnosis for CTS, ultrasonography may be used as a supplementary test for the diagnosis of CTS. |
Key Words:
Carpal tunnel syndrome, Ultrasonography, Anteroposterior diameter, Median nerve. |
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