title: Open wedge high tibial osteotomy (HTO) versus mobile bearing unicondylar medial joint replacement: five years results.
abstract: BACKGROUND
  Aim of this study was to compare clinical results after open wedge HTO (OW-HTO and medial unicondylar joint replacement (UKA) in patients aged between 55 and 65.
  
  
  METHODS
  Fifty-four patients aged between 55 and 65 years with medial OA and varus malalignement who had been treated by either OW-HTO or UKA could be included. Minimum follow up was 5 years. The HSS knee score and the KOOS were used to evaluate clinical outcome.
  
  
  RESULTS
  There was no difference in the revision rate, the HSS knee score and the KOOS subscales Sports/Rec and ADL between the OW-HTO and UKA group. However, the KOOS subscales pain, Symptoms and QoL were significantly better in the UKA group compared to the OW-HTO.
  
  
  CONCLUSIONS
  The results of this study showed that 5 years after surgery patients after UKA had less residual pain and symptoms than patients after UKA. These advantages might result in a higher quality of life.
authors.affiliation: Department of Trauma and Orthopedic Surgery, Martin Luther Hospital, Caspar Theyss Straße 27-31, Grunewald, 14193, Berlin, Germany. w.petersen@mlk-berlin.de.
authors.forename: Wolf
authors.initials: W
authors.lastname: Petersen
authors.affiliation: Department of Trauma and Orthopedic Surgery, Martin Luther Hospital, Caspar Theyss Straße 27-31, Grunewald, 14193, Berlin, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Metzlaff
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D010027:Osteotomy / Q000009:adverse effects / Q000379:methods*; D011788:Quality of Life; D012086:Reoperation; D012189:Retrospective Studies; D013977:Tibia / Q000601:surgery*; D016896:Treatment Outcome
keywords: Internal plate fixator; Joint replacement; Osteoarthritis; Varus malalignement