Postoperative clinical outcomes of unicompartmental knee arthroplasty in patients with isolated medial compartmental osteoarthritis following medial meniscus posterior root tear

IF 1.5 Q3 ORTHOPEDICS

Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology Pub Date : 2021-10-01 DOI:10.1016/j.asmart.2021.07.005

Takaaki Hiranaka , Takayuki Furumatsu , Yuki Okazaki , Takaaki Tanaka , Masatsugu Ozawa , Kenji Masuda , Noritaka Seno , Haowei Xue , Toshifumi Ozaki

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引用次数: 0

Abstract

Background

Cartilage degradation progresses rapidly following medial meniscus posterior root tear (MMPRT). Unicompartmental knee arthroplasty (UKA) has been performed for medial compartmental osteoarthritis following MMPRT. We evaluated the clinical and radiographic outcomes of UKA for medial compartmental osteoarthritis after an untreated MMPRT.

Methods

Twenty-one patients who underwent UKA for isolated medial compartment osteoarthritis following MMPRT were retrospectively investigated. Clinical outcomes were assessed using the Knee Injury and Osteoarthritis Outcome Score and knee range of motion. The posterior tibial slope and tibial component inclination were evaluated using plain radiographs.

Results

The mean follow-up periods were 25.5 ± 13.8 months. Clinical outcomes improved significantly postoperatively. The mean postoperative knee extension angle was −1.1° ± 2.1°, and the knee flexion angle was 134.3° ± 4.9°. The posterior tibial slope angle decreased from 9.0° ± 2.0° preoperatively to 5.4° ± 1.8° postoperatively, and postoperative tibial component inclination at the final follow-up was 2.9° ± 1.1° varus. No aseptic loosening or deep infections were observed.

Conclusion

UKA significantly improved clinical outcomes and could be a viable surgical option for treating isolated medial compartmental osteoarthritis accompanied by untreated MMPRT.

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内半月板后根撕裂后孤立性内室骨关节炎患者单室膝关节置换术的术后临床效果

背景:内侧半月板后根撕裂(MMPRT)后，软骨退化进展迅速。单室膝关节置换术(UKA)已被用于内侧室骨关节炎的MMPRT后。我们评估了未经治疗的MMPRT后UKA治疗内侧间隔骨关节炎的临床和影像学结果。方法回顾性分析21例MMPRT治疗孤立性内隔骨关节炎患者的临床资料。临床结果评估使用膝关节损伤和骨关节炎结局评分和膝关节活动范围。采用x线平片评估胫骨后坡和胫骨构件倾角。结果平均随访时间为25.5±13.8个月。术后临床效果明显改善。术后平均膝关节伸角为- 1.1°±2.1°，膝关节屈曲角为134.3°±4.9°。术后胫骨后倾角由术前9.0°±2.0°降至5.4°±1.8°，最终随访时胫骨构件倾角为2.9°±1.1°内翻。未见无菌性松动或深部感染。结论uka明显改善了临床结果，是治疗孤立性内侧室骨关节炎伴未经治疗的MMPRT的可行手术选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology Multiple-

CiteScore

3.80

自引率

0.00%

发文量

审稿时长

98 days

期刊介绍： The Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology (AP-SMART) is the official peer-reviewed, open access journal of the Asia-Pacific Knee, Arthroscopy and Sports Medicine Society (APKASS) and the Japanese Orthopaedic Society of Knee, Arthroscopy and Sports Medicine (JOSKAS). It is published quarterly, in January, April, July and October, by Elsevier. The mission of AP-SMART is to inspire clinicians, practitioners, scientists and engineers to work towards a common goal to improve quality of life in the international community. The Journal publishes original research, reviews, editorials, perspectives, and letters to the Editor. Multidisciplinary research with collaboration amongst clinicians and scientists from different disciplines will be the trend in the coming decades. AP-SMART provides a platform for the exchange of new clinical and scientific information in the most precise and expeditious way to achieve timely dissemination of information and cross-fertilization of ideas.