title: Revision hip arthroplasty using a cementless modular tapered stem.
abstract: OBJECTIVE
  Here we report the short-term clinical and radiological results of the Profemur®-R cementless modular revision stem.
  
  
  METHODS
  Between June 2002 and May 2006, 68 revision hip arthroplasties were consecutively performed using this stem. Survival at a mean follow-up of 5.2 years was 94%. According to the Paprosky classification, the femoral defect was classified as type 1 in 39 hips (57.3%), type 2 in 18 hips (26.5%), type 3A in ten hips (14.7%) and type 3B in one hip (1.5%).
  
  
  RESULTS
  The Harris Hip Score was 49.57 before surgery and averaged 78.28 at the latest follow-up. The Merle d'Aubigne score improved from 9.15 preoperatively to 14.30 postoperatively. Stem stability rated according to the Agora Roentgenographic Assessment (ARA) scoring system averaged 5.22, suggesting a high likelihood of a durable implant.
  
  
  CONCLUSIONS
  The revision prosthesis examined in this study can be considered a viable and useful option in revision hip arthroplasty, even in patients with bony femoral defects.
authors.affiliation: Department of Orthopaedic Surgery and Traumatology, Ghent University Hospital, Ghent, Belgium. Christophe.pattyn@UGent.be
authors.forename: Christophe
authors.initials: C
authors.lastname: Pattyn
authors.forename: Alexander
authors.initials: A
authors.lastname: Mulliez
authors.forename: René
authors.initials: R
authors.lastname: Verdonk
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Audenaert
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D002484:Cementation / Q000379:methods*; D004185:Disability Evaluation; D005260:Female; D006304:Health Status; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011474:Prosthesis Design; D011859:Radiography; D020127:Recovery of Function; D012086:Reoperation; D015996:Survival Rate; D016138:Walking