Complications Within 6 Months After Arthroscopic Rotator Cuff Repair: Registry-Based Evaluation According to a Core Event Set and Severity Grading

PurposeTo report complications after arthroscopic rotator cuff repairs (ARCRs) in a large patient cohort based on clinical application of newly defined core event set (CES) and severity grading.MethodsConsecutive primary ARCRs documented local registry between February 2010 September 2016 were included. Clinicians adverse events (AEs) reported until the final, 6-month postoperative follow-up according to CES. The CES is an organized list relevant AEs sorted into 3 intraoperative groups (device, osteochondral, soft tissue) 9 pain, cuff, surgical-site infection, peripheral neurologic, vascular, superficial tissue, deep tissue). Severity was determined using adaptation Clavien-Dindo classification. Cumulative complication risks calculated per group stratified by tear extent.ResultsA total 1,661 1,594 patients (mean age, 57 years [standard deviation, years]; 38% women); 21% involved partial tears. All recorded Intraoperative occurred 2.2% repairs. We identified 329 307 (305 patients); 93% had 1 AE. cumulative AE risk at 6 months 18.5%; 21.8% for tears, 15.8% full-thickness single-tendon 18.0% tears with 2 ruptured tendons, 25.6% tendons. as follows: 9.4% shoulder stiffness (7.6%) being most common event; 3.4% persistent or worsening pain; 3.1% defects; 1.7% neurologic lesions; 0.8% infection; 0.7% device; 0.4% osteochondral; 0.2% 0.1% vascular. Most grades I (160 [49%]) II (117 [36%]).ConclusionsComprehensive documentation grading possible showed that about one-fifth affected, mostly one low severity. Shoulder frequent event.Level EvidenceLevel IV, case series. To grading. Consecutive extent. A [36%]). Comprehensive event.