title: Scorpio single radius total knee arthroplasty. A minimal five-year follow-up multicentric study.
abstract: OBJECTIVE
  Our goal was to evaluate the five-year follow-up results of the Scorpio single radius total knee arthroplasty.
  
  
  METHODS
  We performed a retrospective study based upon a multicentre database to evaluate the minimum five-year follow-up clinical and radiological results of 747 patients (831 knees) who underwent primary Scorpio single radius total knee arthroplasty.
  
  
  RESULTS
  The mean age of the patients was 71.9 years. At a minimal five-year follow-up, 141 patients were lost to follow-up, 83 patients had died, eight patients had undergone revision of a component, and the remaining 589 patients (602 knees) had a complete clinical and radiological evaluation after a median of six years (range, 5-8). The mean clinical component of the knee score was 92.2 points, and the mean functional component of the knee score was 76.9 points. At last follow-up, 530 of the 602 knees were rated as excellent or good. Only four knees developed patellar complications requiring revision. The survival rate at six years was 95.2% ± 1.9% and 98.3% ± 0.6 with revision for any reason and revision for mechanical failure as the end point, respectively.
  
  
  CONCLUSIONS
  This medium-term study indicates favourable clinical and radiological results for this single flexion-extension radius design arthroplasty, with a low complication rate on the patellar side.
authors.affiliation: CEETAR-Centre Phocéa, Marseille, France. borrione.ceetar@wanadoo.fr
authors.forename: Frédéric
authors.initials: F
authors.lastname: Borrione
authors.forename: Paul
authors.initials: P
authors.lastname: Bonnevialle
authors.forename: Christian
authors.initials: C
authors.lastname: Mabit
authors.forename: Olivier
authors.initials: O
authors.lastname: Guingand
authors.forename: Denis
authors.initials: D
authors.lastname: Bertin
authors.forename: François
authors.initials: F
authors.lastname: Bonnomet
authors.forename: Christophe
authors.initials: C
authors.lastname: Denis
authors.forename: Gilles
authors.initials: G
authors.lastname: Gagna
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000379:methods*; D016208:Databases, Factual; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000503:physiopathology / Q000601:surgery*; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011183:Postoperative Complications; D016059:Range of Motion, Articular; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome