title: Functional outcome of shoulder hemiarthroplasty for fractures: A multicentre analysis.
abstract: In this multicentre study, data on 102 shoulder hemiarthroplasties for the treatment of fractures were analysed retrospectively with regard to tuberosity healing and functional outcome.
  
  
  METHODS
  Clinical outcome was assessed using the constant score (CS) and the American Shoulder and Elbow Score (ASES). The mean follow-up time was 28.1 months. The proportion of patients presenting tuberosity healing was 35.3% (36 out of 102).
  
  
  RESULTS
  Anatomical tuberosity healing has a significant effect on CS, especially for lateral elevation (p=0.0076), forward elevation (p=0.0002), power (p=0.0023) and the ASES (p=0.017). However, the pain value of the CS was not influenced by tuberosity healing (p=0.34). In patients with anatomically healed tuberosities, the CS averaged 53.0 points, whereas in the group of patients with non-anatomical tuberosity healing, the score averaged 40.1 points (p=0.0004). There was an 11-fold increase in tuberosity nonunion in females compared with males (p=0.0045). Further, nonunion was seen to be associated with advanced age of >70 years (p=0.037) and the presence of osteoporosis (p=0.034).
  
  
  CONCLUSIONS
  In this study, we found that anatomical tuberosity healing around the prosthesis improved functional outcome and range of motion.
authors.affiliation: Department of Traumatology and Orthopaedics, DRK Hospital Berlin-Köpenick, Salvador Allende Strasse 2-8, D-12559 Berlin, Germany. f.reuther@drk-kliniken-berlin.de
authors.forename: Falk
authors.initials: F
authors.lastname: Reuther
authors.forename: Bernd
authors.initials: B
authors.lastname: Mühlhäusler
authors.forename: Diethard
authors.initials: D
authors.lastname: Wahl
authors.forename: Stefaan
authors.initials: S
authors.lastname: Nijs
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D019643:Arthroplasty, Replacement; D005260:Female; D005592:Fracture Fixation / Q000379:methods*; D017102:Fracture Healing; D005599:Fractures, Ununited / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000503:physiopathology; D010147:Pain Measurement; D019736:Prostheses and Implants; D011859:Radiography; D016059:Range of Motion, Articular; D020127:Recovery of Function; D012189:Retrospective Studies; D012737:Sex Factors; D012784:Shoulder Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D012785:Shoulder Joint / Q000503:physiopathology* / Q000601:surgery; D013223:Statistics as Topic; D016896:Treatment Outcome