Treatment of dorsal scapular nerve compression syndrome : a report of 32 cases

Abstract

Objective To observe topography of dorsal scapular nerve andanalyze contributing factors for compression of dorsal scapular nerve and its treatment. Methods 60 sides in 30 cases of old adult cadavers were involved .Anatomical observation showed the origin, course of dorsal scapular nerve and its relationship with its surrounding structures. The treatment strategy and its follow - up result was assessed in dorsal scapular nerve compression in 32 cases. Results The dorsal scapular nerve arisen from the common trunk of long thoracic nerve, coursed across medium scalenus muscle from anteromedial aspect to posteriolateral aspect where there was wrapping of tendinous tissue .When it entered away from long thoracic nerve ,it sent branches into scapular area and inferior aspect of axillary. Of all 32 cases with conservative treatment, good effect was achieved in 23 cases (24 sides). Surgical treatment was done in 8 sides (7 cases) after inefficaly of conservative treatment. Follow - up ranged from 3 months to 2 years .The symptoms were completely or almost disappeared. Conclusions Most of dorsal scapular nerve compression was included in thoracic outlet syndrome. It may also present alone. Treatment of choice was local block. When serious symptoms occurred, surgical treatment should be considered. Key words: Thoracic outlet syndrome; Anatomy,Regional; Treatmentoutcome; Dorsal scapular nerve