INTRODUCTION The validated Knee Osteoarthritis Grading System (KOGS) was implemented and clinical results were compared with patient satisfaction data and implant survivorship in a multi-centre study with surgeons familiar with unicompartmental knee arthroplasty (UKA), patellofemoral arthroplasty (PFA) and total knee arthroplasty (TKA). This is also the first study to evaluate the prevalence of UKA and TKA in consecutive osteoarthritis (OA) knee arthroplasties assessed by this system.. METHOD A consecutive cohort of knees was gathered at three different institutions as categorized by KOGS and surgically treated with the recommended implant unless clinical reasons or patient preference precluded such an option. One thousand one hundred seventy-seven consecutive knees were evaluated including 311 TKA (26%), 695 medial UKA (59%), 154 lateral UKA (13%) and 17 PFA (2%) and the results of the categories evaluated with the Oxford Knee Score (OKS) and the complications reflected in the different categories. RESULTS The failure rate of the UKA (3.5%) or TKA (1.6%) is not higher than accepted results in the literature and the difference in complications is negligible between the UKA (72%) and TKA (26%) cohorts. Revision of a UKA to a TKA as an endpoint was 0.58% with ipsilateral progression at 0.8% over a period of five to 84 months (mean follow-up of 36 months) despite the 'excessive' proportion of UKA in this cohort. The Oxford Score improvement is significant in TKA and UKA and contributes to the acceptable outcomes (The OKS for TKA improved from 20 pre-operatively to 36 post-operatively and the UKA improved from 22 pre-operatively to 39 post-operatively). CONCLUSION KOGS achieves acceptable early survival and functional results when implemented and is a suitable tool for identifying the preferred implant as was validated.

中文翻译：

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在经过验证的评分系统中，患者的结果和对膝关节置换术的满意度。

引言在一项多中心研究中，熟悉单室膝关节置换术（UKA）、,股关节置换术（PFA）和全膝关节置换术的外科医生进行了一项多中心研究，并实施了经过验证的膝关节骨关节炎评分系统（KOGS），并将临床结果与患者满意度数据和植入物存活率进行了比较。 （TKA）。这也是评估该系统评估的UKA和TKA在连续性骨关节炎（OA）膝关节置换术中患病率的第一项研究。除非临床原因或患者喜好排除此类选择，否则均应植入。评估了一百一十七条连续的膝盖，包括311 TKA（26％），695根UKA（59％），154例UKA外侧（13％）和17例PFA（2％），并用牛津膝盖评分（OKS）评估了类别的结果，并在不同类别中反映出并发症。结果UKA（3.5％）或TKA（1.6％）的失败率不高于文献中接受的结果，UKA（72％）和TKA（26％）队列之间的并发症差异可忽略不计。尽管UKA在这个队列中的比例“过高”，但在5到84个月（平均随访36个月）中，UKA对TKA的修订为0.58％，同侧进展为0.8％。牛津评分的改善在TKA和UKA中是显着的，并且有助于达到可接受的结果（TKA的OKS从术前的20改善到术后的36，UKA从术前的22改善到术后的39）。