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J Knee Surg 2020; 33(10): 1041-1046
DOI: 10.1055/s-0039-1692629
Original Article

Satisfaction Rates Are Low following Revision Total Knee Arthroplasty in Asians Despite Improvements in Patient-Reported Outcome Measures

Hamid Rahmatullah Bin Abd Razak
1   SingHealth Duke-NUS Musculoskeletal Sciences Academic Clinical Programme, Singapore, Singapore
,
Jian Hui Merrill Lee
1   SingHealth Duke-NUS Musculoskeletal Sciences Academic Clinical Programme, Singapore, Singapore
,
Shi Ming Tan
1   SingHealth Duke-NUS Musculoskeletal Sciences Academic Clinical Programme, Singapore, Singapore
,
Hwei Chi Chong
2   Orthopaedic Diagnostic Centre, Singapore General Hospital, Singapore, Singapore
,
Ngai Nung Lo
1   SingHealth Duke-NUS Musculoskeletal Sciences Academic Clinical Programme, Singapore, Singapore
,
Seng Jin Yeo
1   SingHealth Duke-NUS Musculoskeletal Sciences Academic Clinical Programme, Singapore, Singapore
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Abstract

With the aging population in Asia and increase in total knee arthroplasty (TKA) utilization rates, the number of patients requiring revision TKA (rTKA) are expected to increase as well. The purpose of this study was to evaluate outcomes and satisfaction rates following rTKA in an Asian population that has unique cultural demands. Registry data of patients who underwent rTKA from 2006 to 2010 and had completed 5 years of follow-up were analyzed. Flexion range, Oxford Knee score (OKS), Knee Society score (KSS), the Short-Form 36 (SF-36), and satisfaction rates were assessed for improvement from preoperative values, as well as by the minimum clinically important difference (MCID) criterion. rTKA was performed in 163 patients. There were significant improvements seen at 2 years postoperatively and these were sustained up to 5 years. The minimal clinically important difference (MCID) criterion for KSS, OKS, and SF-36 physical component score (PCS) was met at 2 and 5 years postoperatively. The overall complication rate was 3.7% at a mean follow-up of 8.4 years. A total of 121 patients (74.2%) were satisfied at 5 years postoperatively. Within our cohort, rTKA results in significantly improved patient-reported outcome measures with a low complication rate of 3.7% at a minimum of 5-year follow-up. Despite these encouraging results, satisfaction rates remain low.

Keywords

total knee arthroplasty - Asian - revision - outcomes - MCID


Publication History

Received: 04 September 2018

Accepted: 05 May 2019

Article published online:
04 July 2019

© 2020. Thieme. All rights reserved.

Thieme Medical Publishers
333 Seventh Avenue, New York, NY 10001, USA.

 

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