Peking University China-Japan Friendship School of Clinical Medicine, Peking University, Beijing, 100029, China.
Department of Orthopedic Surgery, Beijing Key Lab Immune-Mediated Inflammatory Diseases, Peking Union Medical School, China-Japan Friendship Hospital, Beijing, 100029, China.
J Orthop Surg Res. 2020 Dec 4;15(1):584. doi: 10.1186/s13018-020-02063-0.
The argument that patellofemoral osteoarthritis (PFOA) is a contraindication to unicompartmental knee arthroplasty (UKA) remains to be resolved. The purpose of this study was to perform a meta-analysis to determine whether PFOA affects functional outcomes and survivorship after medial UKA.
A literature search was performed in PubMed, Medline, Cochrane Library and Web of science to identify studies published in English (the last search was updated on June 1, 2020). The primary outcome measure was the Oxford Knee Score (OKS), whereas the secondary outcomes included range of motion (ROM) and the revision rate. Patients with patellofemoral joint narrowing or cartilage lesions as assessed intraoperatively or by radiography were assigned to the PFOA group.
A total of 8 studies involving 3504 patients and 3975 knees were included in this meta-analysis. No patients had a severe lateral patellar groove. The results showed that there was no significant difference in the OKS, revision rate and ROM between PFOA patients and patients without PFOA.
No significant difference in functional outcomes and survivorship was found between patients with and without PFOA. Patients with PFOA assessed by radiographs or intraoperatively but without a lateral patellar groove should be considered candidates for medial UKA.
髌股关节炎（PFOA）是否为单髁膝关节置换术（UKA）的禁忌证仍存在争议。本研究旨在进行荟萃分析，以确定 PFOA 是否会影响内侧 UKA 后的功能结果和生存率。
在 PubMed、Medline、Cochrane Library 和 Web of science 中进行文献检索，以确定发表在英文文献中的研究（最后一次检索时间为 2020 年 6 月 1 日）。主要结局指标为牛津膝关节评分（OKS），次要结局指标包括关节活动度（ROM）和翻修率。将术中或影像学评估有髌股关节狭窄或软骨病变的患者分配至 PFOA 组。
本荟萃分析共纳入 8 项研究，共计 3504 例患者和 3975 膝。无患者存在严重的外侧髌股沟。结果显示，PFOA 患者与无 PFOA 患者在 OKS、翻修率和 ROM 方面无显著差异。
在功能结果和生存率方面，PFOA 患者与无 PFOA 患者之间无显著差异。通过影像学或术中评估但无外侧髌股沟的 PFOA 患者应被视为内侧 UKA 的候选者。
