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036 ENDOSCOPIC VERSUS OPEN CARPAL TUNNEL RELEASE IN CARPAL TUNNEL SYNDROME: A COMPARATIVE STUDY



Abstract

This study compares the endoscopic carpal tunnel release with the conventional open technique with respect to short and long-term improvements of functional and clinical outcomes.

We assessed 72 outpatients diagnosed with carpal tunnel syndrome. Thirty-seven patients underwent the endoscopic method according to Chow and 35 were assigned to the open method. Improvement in symptoms, severity and functionality were evaluated shortly preoperatively (at two days, one week and two weeks) and one year after using the Symptom Severity Scale, Symptom Severity Status and DASH questionnaire. Changes in clinical outcomes (grip strength, key pinch and two-point discrimination test) were evaluated one year postoperatively. Complications were also assessed.

Both groups showed similar improvement in all but one outcome one year after the release; increase in grip strength was significantly higher for the endoscopic group. The endoscopic method was also associated with a significantly faster short-term improvement. Separate analysis of the questionnaire components referring to pain reveals that the delay of improvement in the open group is due to the persistence of pain for a longer period. Paresthesias and numbness decrease shortly after the operation with comparable rates for both groups.

Correspondence should be addressed to Anastasia C. Tilentzoglou MD, General Secretary of the Board of Directors of HAOST, 20 A. Fleming Str. (N.Filothei), Gr. 15123 Maroussi, Athens Greece. E-mail: info@eexot.gr