Abstract
BackgroundFor the surgical treatment of severe partial articular surface tendon avulsion (PASTA) lesions, 2 repair techniques, i.e., arthroscopic trans-tendon repair and arthroscopic repair after conversion to a full thickness tear, are widely used, and a satisfactory clinical outcome with both has been reported. The purpose of this study was to investigate integrity of the repaired rotator cuff based on second-look arthroscopy and to compare the above two repair techniques. MethodsThirty-seven shoulders underwent PASTA lesion repair arthroscopically, with 20 shoulders receiving second-look arthroscopy. According to the repair technique, the shoulders were divided into 2 groups, which were 10 shoulders with trans-tendon repair (group P) and 10 shoulders with repair after conversion to a full thickness tear (group C). Second-look arthroscopy was done at a minimum of 3 months after initial surgery, with the mean interval until second-look arthroscopy being 5.6 months (3–13) in group P and 5.1 months (3–9) in group C. The reasons for second-look arthroscopy were pain with contracture in 15 patients, as well as pain in 4 patients and muscle weakness at abduction in one patient. ResultsIn group P, there was complete rotator cuff continuity in 3 shoulders, partial continuity in 4, and failure in 3, while group C had complete continuity in 8 shoulders, partial continuity in 1, and failure in 1. Adhesions of the subacromial bursa were seen in all shoulders, while contracture of the posterior capsule was noted in 5 shoulders from group P and 9 shoulders from group C, and contracture of the rotator interval was identified in 7 shoulders from group P and 9 shoulders from group C. ConclusionsSecond-look arthroscopy revealed that the integrity of the rotator cuff after trans-tendon repair of severe PASTA lesions was often unsatisfactory in patients with symptomatic shoulder. On the other hand, complete continuity was seen in most shoulders underwent repair after conversion to a full thickness tear.
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