Chavoix Jean-Baptiste
Clinique St. Joseph, 51 Avenue Pres Wilson, 16000 Angouleme, France.
Open Orthop J. 2013 May 17;7:152-7. doi: 10.2174/1874325001307010152. Print 2013.
Mobile bearing TKA prostheses were designed to minimize polyethylene wear by increasing implant conformity and reducing stresses between the articulating prosthesis components. It is the purpose of this study to assess the mid-term functionality and clinical outcome associated with a highly congruent mobile platform design, the e.motion(®) UC total knee prosthesis.
Functional and clinical outcomes were assessed after an average of 5.6 years (5.1 - 6.0 years) after total knee arthroplasty in 28 patients (24 women), aged 77.8±7.5 years. The Knee injury and Osteoarthritis Outcome Score (KOOS) was assessed. Secondary outcomes included the Knee Society Score (KSS), radiological evaluation of radiolucent lines and recording of adverse events.
The average KOOS subscore for the activities of daily life was 77.8 points after 5.6 years. Both the clinical and functional KSS improved at 2.4 and 5.6 years. Two patients showed radiolucent lines at 5.6 years. Adverse events over 5.6 years included 3 subluxations, 1 tilting and 1 misalignment of the patella. None of the prostheses were revised.
This pilot study shows promising outcomes for the e.motion(®) UC prosthesis. In the small sample, the implant performed comparably to the LCS prosthesis (the gold standard). There were no loosenings or revisions observed at 5.6 years.
活动平台全膝关节置换（TKA）假体旨在通过提高植入物的贴合度和减少关节假体部件之间的应力来使聚乙烯磨损最小化。本研究的目的是评估与高度贴合的活动平台设计e.motion（®）UC全膝关节假体相关的中期功能和临床结果。
对28例患者（24名女性）进行了研究，这些患者在全膝关节置换术后平均5.6年（5.1 - 6.0年），年龄为77.8±7.5岁。评估了膝关节损伤和骨关节炎疗效评分（KOOS）。次要结果包括膝关节协会评分（KSS）、透亮线的放射学评估以及不良事件的记录。
5.6年后，日常生活活动的平均KOOS子评分为77.8分。临床和功能KSS在2.4年和5.6年时均有所改善。两名患者在5.6年时出现透亮线。5.6年期间的不良事件包括3次半脱位、1次髌骨倾斜和1次髌骨排列不齐。没有假体进行翻修。
这项初步研究显示e.motion（®）UC假体有良好的结果。在小样本中，该植入物的表现与LCS假体（金标准）相当。在5.6年时未观察到松动或翻修情况。
