全膝关节置换术中高屈曲股骨假体的性能-一项随机对照研究

M. Sheldon, Sart Ryan Du, Yates Piers
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摘要

背景:全膝关节置换术(TKR)是一种治疗膝关节顽固性退行性疾病的外科手术。尽管假体设计和手术方法不断发展,但在接受TKR的患者中,活动范围和功能表现受限仍然很常见。后路稳定TKR的目的是保持比十字保留和移动承载膝盖更可复制的回滚,可能导致更好的屈曲和功能。本研究的目的是比较De-Puy后稳定旋转平台TKR假体(PS-RP)与较新的Hi-Flex PS-RPF系统的性能。特别地,比较了两种假体的患者满意度和功能结果。方法:选取70例单侧膝关节骨性关节炎患者,进行原发性TKR治疗。患者被随机分配到两个治疗组中的一个。统计分析两组患者术前、术后的功能结局和患者满意度。结果:两组患者术后6周和12个月主观评分差异无统计学意义。Hi-Flex TKR组患者术后12个月的膝关节屈曲度有显著差异,平均屈曲度(123.8±7.8度)高于116.4±14.1度;P < 0.013)。然而,该组术前屈曲也较好,这表明术前和术后膝关节屈曲角度直接相关,与目前的文献一致。结论:因此,经过12个月的随访,我们得出hiflex和标准膝关节置换术在主观或客观方面没有显著差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance of Hi-Flex Femoral Component in Total Knee Arthroplasty - A Randomized Control Study
Background: Total knee replacement (TKR) is a surgical procedure for intractable degenerative disease of the knee joint. Despite continued evolution in prosthesis design and surgical procedures, restricted range of motion and functional performance is still common in patients undergoing TKR. Posterior stabilized TKR aims to maintain a more reproducible roll back than cruciate retaining and mobile bearing knees, possibly leading to better flexion and function. The aim of this study was to compare the performance of De-Puy posterior-stabilized rotating platform TKR prosthesis (PS-RP) with the newer Hi-Flex PS-RPF system. In particular, the two prostheses were compared for patient satisfaction and functional outcome. Methods: Seventy physically active patients with unilateral knee osteoarthritis, allocated for primary TKR were recruited into the study. Patients were randomly allocated to one of the two treatment groups. The pre and post-operative data (functional outcome and patient satisfaction) was statistically analysed between the two groups. Results: There were no statistical subjective differences between the 2 groups at 6 weeks and 12 months post-operative. There was a significant difference between knee flexion of patients in the Hi-Flex TKR group at 12 months post-operative, achieving higher mean flexion (123.8 ± 7.8 deg compared to 116.4 ± 14.1 deg; p < 0.013). However, this group also had better preoperative flexion suggesting direct correlation between the preoperative and postoperative knee flexion angles, in keeping with current literature. Conclusion: Therefore, we concluded that there are no significant subjective or objective differences between hiflex and standard knee replacements after 12 months of follow-up.
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