title: Pain and function in eight hundred and fifty nine patients comparing shoulder hemiprostheses, resurfacing prostheses, reversed total and conventional total prostheses.
abstract: OBJECTIVE
  Functional results of reversed total prostheses (RTP) have-to a very limited degree-been compared with those of other shoulder prosthesis types. The aim of our study was to compare results of four different types of shoulder prostheses in terms of function, pain, and quality of life (QoL).
  
  
  METHODS
  Questionnaires were completed by 859 patients with shoulder prostheses registered in the Norwegian Arthroplasty Register. Patients with osteoarthritis (OA), rheumatoid arthritis (RA), or fracture sequela (FS) were included. Symptoms and function were assessed using the Oxford Shoulder Score (OSS, scale 0-48), and the EuroQoL-5D (EQ-5D) was used to assess QoL.
  
  
  RESULTS
  Best functional results were obtained using conventional total prostheses (TPs) and RTPs -mean OSS improvement 18 and 16 units, respectively, vs 11 with hemiprostheses (HPs). For patients with OA, TPs performed best; for those with RA and FS, RTPs performed best; and those with HPs had the worst results in all diagnostic groups. The greatest improvement in QoL was seen in patients with TPs and RTPs.
  
  
  CONCLUSIONS
  Conventional TPs provide the best improvement in pain, function and QoL in OA patients; RTPs are superior in patients with RA and FS.
authors.affiliation: Department of Rheumatology, Haukeland University Hospital, Bergen, Norway. bjorg.tilde.svanes.fevang@helse-bergen.no
authors.forename: Bjørg-Tilde S
authors.initials: BT
authors.lastname: Fevang
authors.forename: Stein H L
authors.initials: SH
authors.lastname: Lygre
authors.forename: Glenn
authors.initials: G
authors.lastname: Bertelsen
authors.forename: Arne
authors.initials: A
authors.lastname: Skredderstuen
authors.forename: Leif I
authors.initials: LI
authors.lastname: Havelin
authors.forename: Ove
authors.initials: O
authors.lastname: Furnes
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D019643:Arthroplasty, Replacement / Q000379:methods*; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011788:Quality of Life; D016059:Range of Motion, Articular / Q000502:physiology; D020127:Recovery of Function; D012785:Shoulder Joint / Q000503:physiopathology / Q000601:surgery*; D011795:Surveys and Questionnaires; D016896:Treatment Outcome