title: Reverse total shoulder replacement: intraoperative and early postoperative complications.
abstract: Reverse total shoulder arthroplasty is a treatment option for patients with symptomatic glenohumeral arthritis and a deficient rotator cuff. The reported complication rates vary from 0% to 68%. Given this variation, our purposes were to (1) determine the learning curve for the procedure, (2) identify complications and surgical pitfalls, and (3) compare our results with those of similar published series. We retrospectively reviewed 20 consecutive patients (mean age, 73 years; range, 45-88 years) who had reverse total shoulder arthroplasty by one surgeon, tabulating intraoperative and postoperative complications. Minimum followup was 3 months (average, 9 months; range, 3-21 months). The intraoperative complication rate for the first 10 patients was higher than that for the second 10 patients. There were 33 complications in 15 patients: 11 patients collectively had 22 intraoperative complications and eight patients collectively had 11 postoperative complications. At radiographic followup, 11 patients had scapular notching and nine patients had heterotopic ossification. Our complication rate was higher than published rates.
  
  
  METHODS
  Level II, prognostic study. See the Guidelines for Authors for a complete description of levels of evidence.
authors.affiliation: Department of Orthopaedic Surgery, Division of Sports Medicine and Shoulder Surgery, Johns Hopkins University, Baltimore, MD, USA.
authors.forename: Carl
authors.initials: C
authors.lastname: Wierks
authors.forename: Richard L
authors.initials: RL
authors.lastname: Skolasky
authors.forename: Jong Hun
authors.initials: JH
authors.lastname: Ji
authors.forename: Edward G
authors.initials: EG
authors.lastname: McFarland
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001168:Arthritis / Q000453:epidemiology / Q000473:pathology / Q000601:surgery*; D019643:Arthroplasty, Replacement / Q000009:adverse effects / Q000379:methods / Q000706:statistics & numerical data*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006810:Humeral Fractures / Q000453:epidemiology; D007431:Intraoperative Complications / Q000453:epidemiology*; D004204:Joint Dislocations / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000453:epidemiology; D011183:Postoperative Complications / Q000453:epidemiology*; D011379:Prognosis; D019736:Prostheses and Implants; D012189:Retrospective Studies; D012307:Risk Factors; D012785:Shoulder Joint / Q000473:pathology / Q000601:surgery*