Influence of the Different Prosthesis Designs on Subjective Functional Evaluation after TKA: Medium-Term Outcome Using the 2011 Knee Society Score

• 作者: Hiroaki Kanazawa Yuichiro Maruyama
• 来源期刊: 矫形学期刊(英文)
• 学科: 数学
• 关键词: Total Knee Arthroplasty Patient-Reported Outcome 2011 New KSS Prosthesis Design
• 年，卷（期）: 2020,（12）
• 页码范围: 371-383
• 页数: 13页
• 分类号: O17

摘要

<b><span>Background:</span></b><span> Patient-reported outcome</span><span> (</span><span>PRO</span><span>) </span><span>ha</span><span>s</span><span> become the focus of increased attention in the assessment of total knee arthroplasty (TKA). The purpose of this study was to investigate whether different prosthesis designs affected postoperative patient-reported performance.</span><i><span> </span></i><b><span>Materials and Methods:</span></b><i><span> </span></i><span>We reviewed 216 patients (234 knees) implanted with the Press-Fit Condylar <pfc> Sigma prosthesis</pfc></span><b><span> </span></b><span>at our institution between January 2009 and December 2011. This study included 76 knees with fixed-bearing cruciate-retaining (FB-CR), 78 knees with fixed-bearing posterior-stabilized (FB-PS), and 80 knees with mobile-bearing posterior-stabilized (MB-PS) designs. The mean follow-up was 8.0 ± 0.74</span><b><span> </span></b><span>years. Preoperative and follow-up ratings according to the 2011 Knee Society Score (2011 KSS), range of motion (ROM), and standing femoro-tibial angle (FTA) were obtained for all patients. Additionally, Western Ontario and McMaster Universities Arthritis Index (WOMAC) scores were collected at last follow-up.</span><i><span> </span></i><b><span>Results:</span></b><span> </span><span>Three separate subscales of the 2011 KSS of the three</span><b><span> </span></b><span>cohorts were significantly improved post-operatively compared to the pre-operative values (</span><i><span>p</span></i><span> </span><span><</span><span> </span><span>0.05), except for expectation scores. At the time of follow-up, significantly higher the 2011 Knee Society Functional Scores</span><span> </span><span><2011 KSFS> (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.016) were found in the PS group. In particular, there w</span><span>ere</span><span> significant differences in advanced activities of the 2011 KSFS among the three groups (</span><i><span>P</span></i><i><span> </span