title: Navigation versus conventional high tibial osteotomy: systematic review.
abstract: BACKGROUND
  One major use for high tibial osteotomy aims at improving alignment in the symptomatic, varus malaligned, medial compartment osteoarthritic knee. The importance of achieving correct alignment is obvious upon considering the increased potential for significant complications with over- or undercorrection in any plane. The aim of this systematic review was to compare navigation and conventional high tibial osteotomy.
  
  
  METHODS
  This systematic review searched the MEDLINE and EMBASE databases to compare the short-term clinical and radiological outcomes between patients undergoing either conventional or navigated high tibial osteotomy.
  
  
  RESULTS
  We retrieved 71 articles, which ultimately resulted in 14 eligible studies for inclusion. Though heterogeneity prevented statistical analysis, only one study failed to suggest superiority of navigation over conventional techniques.
  
  
  CONCLUSIONS
  Navigated high tibial osteotomy improves accuracy over conventional techniques, though the current best evidence presented herein must be advanced by higher quality studies.
authors.affiliation: Department of Orthopedic Surgery, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8 Canada.
authors.forename: Khaled
authors.initials: K
authors.lastname: Hasan
authors.affiliation: University of Toronto, 3359 Mississauga Rd, Mississauga, ON L5L 1C6 Canada.
authors.forename: Qusai Abdel
authors.initials: QA
authors.lastname: Rahman
authors.affiliation: Department of Orthopedic Surgery, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8 Canada.
authors.forename: Paul
authors.initials: P
authors.lastname: Zalzal