title: Long-term outcome after high tibial osteotomy.
abstract: BACKGROUND
  The frequency of tibial osteotomy in the treatment of osteoarthritis of the knee has decreased due to the demanding surgical procedure and the rising number of total knee replacements (TKR). Only few data exist concerning survival rates after high tibial osteotomy (HTO) with a follow-up exceeding 10 years. We want to present long-term results with a follow-up of more than 18 years after operation.
  
  
  METHODS
  Survival rates and the influence of age, gender and the mechanical axis were investigated in 134 lateral closing-wedge osteotomies in 111 patients.
  
  
  RESULTS
  The survival rate was 94% after 5 years, 79.9% after10 years, 65.5% after 15 years, and 54.1% after 18 years. Age had a significant influence on the survival and gender and the mechanical axis had no significant influence.
  
  
  CONCLUSIONS
  We conclude, that with a 54.1% survival after 18 years HTO is a useful facility to protract the implantation of a total knee prosthesis.
authors.affiliation: Department of Orthopedic Surgery, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Tirol, Austria. Michaela.gstoettner@uklibk.ac.at
authors.forename: Michaela
authors.initials: M
authors.lastname: Gstöttner
authors.forename: Gstöttner
authors.initials: G
authors.lastname: Michaela
authors.forename: Florian
authors.initials: F
authors.lastname: Pedross
authors.forename: Pedross
authors.initials: P
authors.lastname: Florian
authors.forename: Michael
authors.initials: M
authors.lastname: Liebensteiner
authors.forename: Liebensteiner
authors.initials: L
authors.lastname: Michael
authors.forename: Christian
authors.initials: C
authors.lastname: Bach
authors.forename: Bach
authors.initials: B
authors.lastname: Christian
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D010027:Osteotomy / Q000379:methods; D012189:Retrospective Studies; D013977:Tibia / Q000601:surgery*; D016896:Treatment Outcome