Changes in patellofemoral alignment do not cause clinical impact after open-wedge high tibial osteotomy

Purpose The objectives of this study were (1) to evaluate the clinical and radiologic outcomes of open-wedge high tibial osteotomy focusing on patellofemoral alignment and (2) to search for correlation between variables and patellofemoral malalignment. Methods A total of 46 knees (46 patients) from...

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Published in:Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2016-01, Vol.24 (1), p.129-133
Main Authors: Lee, Yong Seuk, Lee, Sang Bok, Oh, Won Seok, Kwon, Yong Eok, Lee, Beom Koo
Format: Article
Language:English
Subjects:
Adult
Aged
Arthritis
Biomechanics
Bone Malalignment - physiopathology
Bone Malalignment - surgery
Female
Humans
Knee
Male
Medicine
Medicine & Public Health
Middle Aged
Orthopedics
Osteoarthritis
Osteoarthritis, Knee - physiopathology
Osteoarthritis, Knee - surgery
Osteotomy - methods
Patellofemoral Joint - surgery
Retrospective Studies
Surgery
Tibia - physiopathology
Tibia - surgery
Treatment Outcome
Weight-Bearing
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Summary:Purpose The objectives of this study were (1) to evaluate the clinical and radiologic outcomes of open-wedge high tibial osteotomy focusing on patellofemoral alignment and (2) to search for correlation between variables and patellofemoral malalignment. Methods A total of 46 knees (46 patients) from 32 females and 14 males who underwent open-wedge high tibial osteotomy were included in this retrospective case series. Outcomes were evaluated using clinical scales and radiologic parameters at the last follow-up. Pre-operative and final follow-up values were compared for the outcome analysis. For the focused analysis of the patellofemoral joint, correlation analyses between patellofemoral variables and pre- and post-operative weight-bearing line (WBL), clinical score, posterior slope, Blackburn Peel ratio, lateral patellar tilt, lateral patellar shift, and congruence angle were performed. Results The minimum follow-up period was 2 years and median follow-up period was 44 months (range 24–88 months). The percentage of weight-bearing line was shifted from 17.2 ± 11.1 to 56.7 ± 12.7 %, and it was statistically significant ( p  
ISSN:0942-2056
1433-7347
DOI:10.1007/s00167-014-3349-y