2021 ISAKOS Biennial Congress ePoster
Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status
Bo-Ram Na, MD, Hwasun-Gun, Chonnam KOREA, REPUBLIC OF
Jong-Keun Seon, MD, PhD, Prof, Gwangju, Jeonnam KOREA, REPUBLIC OF
Eun-Kyoo Song, MD, PhD, Prof., Gwangju KOREA, REPUBLIC OF
Young Min Lee, MD, Hwasun-gun, Jeollanam-do KOREA, REPUBLIC OF
Chonnam National University Medical School and Hospital, Hwasun-Gun , Chonnam, KOREA, REPUBLIC OF
FDA Status Cleared
Summary
Medial open wedge high tibial osteotomy would contribute to osteoarthritis progression of the patellofemoral joint regardless of the preexisting cartilage status, without an association with clinical outcomes.
ePosters will be available shortly before Congress
Abstract
Purpose
Although it has been known that medial open wedge high tibial osteotomy (MOWHTO) would adversely affect the patellofemoral joint, no previous study examined the surgical outcome of MOWHTO according to the preexisting cartilage status of the patellofemoral joint. The purpose of this study was to investigate the effect of MOWHTO on the patellofemoral joint with regard to objective and subjective aspects according to the preexisting cartilage status.
Methods
218 patients who underwent MOWHTO included in this study. The patients were divided into two groups according to the preexisting cartilage status of the patellofemoral joint: group 1 (International Cartilage Repair Society [ICRS] grade 0 or 1) and group 2 (ICRS
grade 2 or 3 or 4). Comparative analysis was performed regarding clinical scores, radiographic parameters between the two groups.
Results
Clinical outcomes showed overall improvement from baseline to the time of last follow up, with no significant difference between the two groups at each time point. There were no significant differences in radiographic parameters between the two groups. Radiographic grade of patellofemoral osteoarthritis in both groups showed a tendency to progress, without statistical significance. Consistently, there was no significant difference in the frequency of progression of cartilage lesion grade in the patellofemoral joint between the two groups.
Conclusion
MOWHTO would contribute to osteoarthritis progression of the patellofemoral joint regardless of the preexisting cartilage status, without an association with clinical outcomes.