Mid- term results of stryker® scorpio plus mobile bearing total knee arthroplasty.
Mid- term results of stryker® scorpio plus mobile bearing total knee arthroplasty.
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DOI：
10.1186/1758-2555-4-38
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发表时间：
2012-10-18
期刊：
影响因子：
--
通讯作者：
Saito T
中科院分区：
文献类型：
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作者：
Kobayashi H;Mitsugi N;Mochida Y;Taki N;Akamatsu Y;Aratake M;Ota H;Ishii K;Harigane K;Ideno T;Saito T
引入移动轴承膝关节系统是为了减少关节轴承表面的接触应力并减少聚乙烯磨损。本研究的目的是调查使用 Scorpio Plus 移动轴承膝关节系统（新泽西州莫瓦市 Stryker）进行全膝关节置换术 (TKA) 的患者的中期结果，并比较骨关节炎和骨坏死患者（OA·ON 组）与类风湿性关节炎患者（RA 组）的结果。 2003年6月1日至2005年12月31日，随访男8例，女58例，随访时间4.4～7.6年。骨关节炎53膝，类风湿关节炎17膝，骨坏死6膝。使用日本骨科协会膝关节评分（JOA评分）和膝关节协会全膝关节置换术X射线成像评估和评分系统进行临床和放射学随访。就 JOA 评分而言，两组均有显着改善。 OA·ON组术后活动范围为0.8°～116.8°，RA组术后活动范围为0.0°～113.7°。两组之间的放射学评估没有显着差异。 1 例患者出现聚乙烯插入物自发脱位，1 例患者出现深部感染。使用该模型接受 TKA 的患者的临床和影像学结果有显着改善。与移动轴承 TKA 相关的聚乙烯嵌件脱位风险值得关注。
The mobile bearing knee system was introduced to lessen contact stress on the articular bearing surface and reduce polyethylene wear. The purpose of the current study was to investigate the mid-term results of patients undergoing total knee arthroplasties (TKAs) using Scorpio Plus Mobile Bearing Knee System (Stryker, Mahwah, NJ), and compare the outcomes between patients with osteoarthritis and osteonecrosis (OA·ON group) and patients with rheumatoid arthritis (RA group). Eight males and 58 females were followed up for a period of 4.4- 7.6 years from June 1, 2003 to December 31, 2005. There were 53 knees with osteoarthritis, 17 knees with rheumatoid arthritis, and 6 knees with osteonecrosis. Clinical and radiographic follow- up was done using The Japanese Orthopedic Association knee rating score (JOA score) and Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System. With regard to the JOA score, there was significant improvement in both groups. The postoperative range of motion was between 0.8°and 116.8° in OA·ON group, and between 0.0° and 113.7° in RA group. There were no significant differences with the radiographic evaluation between two groups. Spontaneous dislocation of a polyethylene insert occurred in one patient, and deep infection was occurred in one patient. There was significant improvement with regard to the clinical and radiographic results of patients undergoing TKAs using the model. The risk of polyethylene insert dislocation related to the mobile bearing TKA is a cause for concern.