Arthroscopically Determined Degree of Injury After Shoulder Dislocation Relates to Recurrence Rate

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Abstract
Urrence rate. Traumatic anterior instability is often associated with intraarticular injuries. The frequency of injuries may increase with dislocation or subluxation episodes. Questions/purposes We compared the frequency of lesions associated with traumatic anterior instability in patients with primary and recurrent instability. Methods We retrospectively reviewed 96 selected patients with traumatic anterior instability treated arthroscopically between 2005 and 2008. Forty-five had arthroscopy after a first episode of dislocation (Group I) and 51 had two or more episodes of instability (Group II). We compared the frequencies and percentage of intraarticular lesions in both groups. Results We observed a Bankart lesion in all patients of both groups. The posterior Bankart lesion was observed more frequently in Group II than in Group I: 47% versus 28%. SLAP lesions were observed in 12% in Group I and 24% in Group II. In 10 patients in Group II, there was an associated rotator cuff tear. Conclusions Patients with recurrent shoulder dislocation had a higher arthroscopic degree of injury. These patients presented more posterior labral lesions, SLAP tears, and rotator cuff pathology than patients with a first episode of shoulder dislocation. Level of Evidence Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence....

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