Outcome of the isolated SLAP lesions and analysis of the results according to the injury mechanisms.

Superior labral anterior posterior (SLAP) lesions of the shoulder arise from various causes and have some controversies in their treatment. The purpose of this study is to evaluate the outcomes of arthroscopic SLAP repair and the relationship between injury mechanisms and outcomes. We evaluated the clinical results of 24 patients (mean 33 months follow-up) who had an arthroscopic isolated SLAP (type II: 21, type III: 1, type IV: 2 patients) repair with suture anchors. These labral tears were arthroscopically repaired with 1-4 anchors (mean 1.8). All patients were evaluated with University of California, Los Angeles (UCLA) and Visual Analogue Scale (VAS) scores. There were the following injury mechanisms: compression-type, 10; traction-type, 9; combined or other-type, 5 patients. We also compared the clinical results according to the injury mechanisms. Preoperatively, the mean of UCLA and VAS scores were 22.7 and 6.4 points, respectively. At an average of 33 months postoperatively, the mean of UCLA and VAS scores were 29.9 and 2.1 points, respectively. There was statistical improvement in the subjective scores from the pre- to post-operation. UCLA and VAS scores of the pre- and post-operation were not statistically different according to the injury mechanisms. Arthroscopic repair is effective in the treatment of isolated SLAP lesion and injury mechanisms do not affect the clinical outcomes.