Can Knees be Forgotten 2 Years After Total Knee Arthroplasty?

R. Bansal, Angad Jolly, Easwar Balasubramaniana, Shamsundar Yalamanchalia
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Abstract

Background: There have been multiple ways to measure outcomes post total knee arthroplasty. Ultimate goal is to replicate a natural joint to allow patients to perform most activities of daily living and give high satisfaction rates. Patient reported outcome measures (PROM) like Forgotten Joint Score (FJS), Oxford Knee Score (OKS)and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) have been validated and used for evaluation of TKA patients. FJS helps to evaluate how natural a prosthesis feels post surgery. Our aim was to study how natural a joint felt or was forgotten 2 year after surgery and how FJS correlates with OKS and WOMAC scores. Materials and Methods : We evaluated 254 total knee replacements with minimum 2 year post TKA. All the patients who were at least 2 year post operative, completed FJS questionnaire where scores are ranged from 0-100; OKS questionnaire where scores are ranged between 0-48; Short – form WOMAC questionnaire where scores are ranged between 0-28. Correlation analysis was performed for FJS with OKS and short - form WOMAC scores.  Results: 254 patients with mean age of 65.01 years of which 83 males and 171 females were evaluated with minimum of 24 months follow up and average follow-up of 30.85 months. Average FJS, OKS and SF WOMAC were 77.24, 38.75 & 79.97 respectively. FJS showed good correlation with OKS and SF WOMAC scores. Conclusion : FJS is an easy and equally effective outcome measure, which is valid and reliable like the other common well know measures like OKS and WOMAC. Patients experience a marked improvement in the FJS over the first two years. Patients in our series had good outcomes who had more natural feel of knees or a feeling of “forgotten knees” in their day to day activity after 2 years of surgery.  
全膝关节置换术后2年会忘记膝盖吗?
背景:有多种方法测量全膝关节置换术后的结果。最终目标是复制一个自然的关节,使患者能够进行大多数日常生活活动,并给予高满意度。患者报告的结果测量(PROM),如遗忘关节评分(FJS),牛津膝关节评分(OKS)和西安大略省和麦克马斯特大学骨关节炎指数(WOMAC)已被验证并用于评估TKA患者。FJS有助于评估假体术后的自然感觉。我们的目的是研究术后2年关节的自然感觉和遗忘程度,以及FJS与OKS和WOMAC评分的相关性。材料和方法:我们评估了254例TKA术后至少2年的全膝关节置换术。所有术后至少2年的患者完成FJS问卷,得分范围为0-100分;OKS问卷,得分在0-48之间;简短的WOMAC问卷,得分范围在0-28之间。FJS与OKS和短格式WOMAC评分进行相关性分析。结果:254例患者,平均年龄65.01岁,其中男性83例,女性171例,随访时间最小24个月,平均30.85个月。FJS、OKS和SF WOMAC的平均评分分别为77.24、38.75和79.97。FJS与OKS、SF WOMAC评分有较好的相关性。结论:FJS是一种简便且同样有效的结局测量方法,与OKS、WOMAC等常见的测量方法一样有效可靠。患者的FJS在前两年有明显的改善。我们研究的患者在经过2年的手术后,在日常活动中膝盖感觉更自然,或者感觉“遗忘膝盖”,结果都很好。
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24 weeks
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