Necessary Factors to Achieve Deep Flexion for Asian Populations after Oxford Unicompartmental Knee Arthroplasty
Necessary Factors to Achieve Deep Flexion for Asian Populations after Oxford Unicompartmental Knee Arthroplasty
复制标题
亚洲人群牛津单间室膝关节置换术后实现深度屈曲的必要因素
DOI：
10.1055/s-0039-1678539
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Inui Hiroshi
中科院分区：
文献类型：
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作者：
Taketomi Shuji;Yamagami Ryota;Kawaguchi Kohei;Nakazato Keiu;Tanaka Sakae;Inui Hiroshi
关于牛津单间室膝关节置换术（UKA）的临床结果已有很多报道；然而，没有人研究 UKA 后屈曲角度对临床结果的影响。本研究的目的是阐明结果与术后最大屈曲角度之间的关系，并揭示亚洲人群认为最大屈曲角度≥140度的必要因素。我们根据术后最大屈曲角度将212名UKA患者分为以下三组：第1组屈曲角度≥140度的患者80例（38％），第2组屈曲角度 ≤ 屈曲角度 < 140度的患者80例（38％），第3组屈曲角度 < 130度的患者52例(24%)。此外，我们比较了三组之间的术后临床结果，并进行了多变量回归分析以评估影响屈曲角度的参数。第 1 组的术后膝关节功能评分显着高于第 3 组。与第 2 组相比，第 1 组在所有分量表中的平均膝关节损伤和骨关节炎结果评分 (KOOS) 均较高，在运动和生活质量分量表中的 KOOS 分数显着高于第 2 组，在所有分量表中均显着高于第 3 组。多变量逻辑回归显示，术前屈曲角度和胫骨假体后斜度 与最大屈曲角度≥140度相关。 Oxford UKA 后最大屈曲角度≥140 度改善了临床结果，特别是患者报告的结果。此外，胫骨后斜度是 UKA 患者实现最大屈曲角度≥140°的重要因素。
There have been many reports on the clinical outcomes of Oxford unicompartmental knee arthroplasty (UKA); however, none have investigated the influence of flexion angle after UKA on clinical outcomes. The objective of this study was to clarify the relationship between outcomes and the postoperative maximum flexion angle and reveal the necessary factors for maximum flexion angle ≥ 140 degrees which is considered necessary for Asian populations. We categorized 212 UKA patients into the following three groups based on the postoperative maximum flexion angle: group 1 had flexion angle ≥ 140 degrees in 80 patients (38%), group 2 had 130 degrees ≤ flexion angle < 140 degrees in 80 patients (38%), and group 3 had flexion angle < 130 degrees in 52 patients (24%). Furthermore, we compared the postoperative clinical outcomes between the three groups and conducted multivariable regression analyses to assess parameters affecting the flexion angle. Postoperative Knee Society function scores for group 1 was significantly higher than for group 3. Group 1 had higher mean knee injury and osteoarthritis outcome scores (KOOS) in all subscales and significantly higher KOOS scores in the sports and quality of life subscales compared with group 2 and in all subscales compared with group 3. Multivariable logistic regression showed that preoperative flexion angle and tibial component posterior slope were associated with maximum flexion angle ≥ 140 degrees. Maximum flexion angle ≥ 140 degrees after Oxford UKA improved the clinical results, particularly for patient-reported outcomes. Furthermore, the tibial posterior slope was an important factor in achieving maximum flexion angle ≥ 140 degrees in UKA patients.