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Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status

Bo-Ram Na, MD, KOREA, REPUBLIC OF Jong-Keun Seon, MD, PhD, Prof, KOREA, REPUBLIC OF Eun-Kyoo Song, MD, PhD, Prof., KOREA, REPUBLIC OF Young Min Lee, MD, KOREA, REPUBLIC OF

Chonnam National University Medical School and Hospital, Hwasun-Gun , Chonnam, KOREA, REPUBLIC OF

2021 Congress ePoster Presentation Not yet rated

Anatomic Location

Knee Patellofemoral

Diagnosis / Condition

Osteoarthritis

Treatment / Technique

Osteotomy

Diagnosis Method

X-ray

Patellofemoral

Patellofemoral Osteoarthritis

This media is available to current ISAKOS Members, Global Link All-Access Subscribers and Webinar/Course Registrants only.

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.

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.

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Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status

Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status

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Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status

Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status

Purpose

Methods

Results

Conclusion