Ultrasonography of Rotator Cuff Tears. Comparison with Observations at Surgery.:Comparison with Observations at Surgery

概要

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Sonography of the shoulder joint has developed into an established examination technique in diagnosis of periarticular lesions of the shoulder. We investigated the correlation between sonographic and anatomic changes of the rotator cuff of the shoulder in 24 cases.All patients were examined in the hyperextended internal rotation view.Patients were diagnosed as having a rotator cuff tear if one of three criteria was met: (1) absence of the cuff (2) thinning of the cuff, and (3) an echogenic focus at the discontinuity edge of the tendon.Twenty-two cases had full thickness tears and 2 cases had partial thickness tears, both of which had not been detected by sonography before arthrography was performed.Operative finding were similar to sonography, except in the two cases with partial tears.We concluded that sonography is an effective modality for the assesment of full thickness tears, but not for partial thickness tears.