title: Revisions of total shoulder arthroplasty: Clinical results and complications of various modalities.
abstract: The number of primary total shoulder arthroplasties has increased exponentially in recent years, with a corresponding increase in the number of revision procedures.
  
  
  
  To assess clinical results and complications in a series of shoulder implant replacement, of whatever etiology.
  
  
  
  Thirty-seven patients, with a mean age of 68.3±11.8 years at time of implant replacement, were included in a retrospective study. Mean interval between primary arthroplasty and revision was 78.4±59.7 months (range, 1-200 months). The main assessment criterion was changed in Constant score between preoperative value and follow-up. Secondary criteria were: onset of intra- and postoperative complications, and reoperation related to a complication.
  
  
  
  Mean follow-up was 41.5±32.0 months (range, 12-105 months). Absolute Constant score increased by a mean 17.5±15.1 points (P<0.001) and weighted Constant score by 26.3±23.6 points (P<0.001). Intraoperative complications occurred in 24.3% of patients (9/37) and postoperative complications in 29.7% (11/37). Among the patients, 21.6% (8/37) required reoperation for postoperative complications. Overall, 54% of patients (20/37) suffered from intra- or postoperative complications.
  
  
  
  Shoulder implant replacement improved function in the present series, but with a high rate of complications and reoperations.
  
  
  
  IV, retrospective case-control study without control group.
authors.affiliation: Hôpitaux Universitaires de Strasbourg, Centre de Chirurgie Orthopédique de la Main, Service de Chirurgie Orthopédique et de Traumatologie, 10, avenue Achille-Baumann, 67400 Illkirch-Graffenstaden, France. Electronic address: antoni.maxime@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Antoni
authors.affiliation: Hôpitaux Universitaires de Strasbourg, Laboratoire de Biostatistiques, Service de Santé Publique, 67000 Strasbourg, France.
authors.forename: M
authors.initials: M
authors.lastname: Barthoulot
authors.affiliation: Hôpitaux Universitaires de Strasbourg, Centre de Chirurgie Orthopédique de la Main, Service de Chirurgie Orthopédique et de Traumatologie, 10, avenue Achille-Baumann, 67400 Illkirch-Graffenstaden, France.
authors.forename: J F
authors.initials: JF
authors.lastname: Kempf
authors.affiliation: Hôpitaux Universitaires de Strasbourg, Centre de Chirurgie Orthopédique de la Main, Service de Chirurgie Orthopédique et de Traumatologie, 10, avenue Achille-Baumann, 67400 Illkirch-Graffenstaden, France.
authors.forename: P
authors.initials: P
authors.lastname: Clavert
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000072228:Arthroplasty, Replacement, Shoulder / Q000379:methods*; D016022:Case-Control Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications / Q000453:epidemiology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011183:Postoperative Complications / Q000453:epidemiology* / Q000601:surgery; D012086:Reoperation / Q000379:methods*; D012189:Retrospective Studies
keywords: Change; Complications; Function; Results; Revision; Shoulder arthroplasty