BackgroundThe aims of this study were to investigate the clinical characteristics of patients with combined anterior instability and superior labrum from anterior to posterior (SLAP) lesions, and to analyze the effect of concomitant SLAP repair on surgical outcomes.MethodsWe retrospectively reviewed patients who underwent arthroscopic stabilization for anterior shoulder instability between January 2004 and March 2013. A total of 120 patients were available for at least 1-year follow-up. Forty-four patients with reparable concomitant detached SLAP lesions (group I) underwent combined SLAP and anterior stabilization, and 76 patients without SLAP lesions (group II) underwent anterior stabilization alone. Patient characteristics, preoperative and postoperative pain scores, Rowe scores, and shoulder ranges of motion were compared between the 2 groups.ResultsPatients in group I had higher incidences of high-energy trauma (p = 0.03), worse preoperative pain visual analogue scale (VAS) (p = 0.02), and Rowe scores (p = 0.04). The postoperative pain VAS and Rowe scores improved equally in both groups without significant differences. Limitation in postoperative range of motion was similar between the groups (all p-value > 0.05).ConclusionsAnterior instability with SLAP lesion may not be related to frequent episodes of dislocation but rather to a high-energy trauma. SLAP fixation with anterior stabilization procedures did not lead to poor functional outcomes if appropriate surgical techniques were followed.

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We report a case of atlantoaxial rotatory subluxation developed after scapular relocation for Sprengel deformity in a 5-year-old girl. Scapular relocation descended the scapula by 60%, and achieved a normal shoulder joint motion. However, atlantoaxial rotatory subluxation developed, probably by pulling force of the tightened anterior fibers of upper trapezius muscle. Atlantoaxial joint was reduced easily under general anesthesia and muscle relaxant, along with surgical release of the tight band at the anterior part of trapezius muscle, which was maintained by halovest immobilization.