title: Open Wedge High Tibial Osteotomy and Combined Arthroscopic Surgery in Severe Medial Osteoarthritis and Varus Malalignment: Minimum 5-Year Results.
abstract: OBJECTIVE
  To evaluate the radiologic and functional outcomes of medial open wedge high tibial osteotomy (HTO) combined with arthroscopic procedure in patients with medial osteoarthritis.
  
  
  METHODS
  From June 1996 to March 2010, 26 patients (32 knees) who underwent medial open wedge osteotomy and arthroscopic operation for medial osteoarthritis were retrospectively reviewed. Measurements included hip-knee-ankle (HKA) angle, femorotibial angle, medial proximal tibial angle, posterior tibial slope angle, and Kellgren-Lawrence grade. Clinical evaluation was performed using Lysholm knee scoring scale and knee and function score of the American Knee Society.
  
  
  RESULTS
  Differences between the mean preoperative and postoperative measurements were significant in all angles including the HKA angle (-5.7° and +5.5°), femorotibial angle (-1.9° and +9.8°), and medial proximal tibial angle (82.9° and 90.5°) (p<0.05). Mean Lysholm knee scoring scale was 63.6 preoperatively and 88.7 at the last follow-up, mean Knee Society knee score was 61.2 and 86.6, and mean function score was 59.3 and 87.2, respectively. All differences were significant (p<0.05).
  
  
  CONCLUSIONS
  Medial open wedge HTO in combination with arthroscopic procedure is an effective treatment method for medial osteoarthritis to treat varus deformity and an intra-articular lesion.
authors.affiliation: Department of Orthopedic Surgery, Dankook University Hospital, Dankook University School of Medicine, Cheonan, Korea.
authors.forename: Moon-Jib
authors.initials: MJ
authors.lastname: Yoo
authors.affiliation: Department of Orthopedic Surgery, Dankook University Hospital, Dankook University School of Medicine, Cheonan, Korea.
authors.forename: Yong-Eun
authors.initials: YE
authors.lastname: Shin
keywords: Arthroscopy; Knee; Osteoarthritis; Osteotomy