Geert Peersman1,2, Jeroen Verhaegen3, Barbara Favier3. 1. Department of Orthopaedic Surgery, Ziekenhuis Netwerk Antwerpen, Campus Stuivenberg, Antwerp, Belgium. geert.peersman@telenet.be. 2. Institute for Orthopaedic Research and Training, KU Leuven / UZ Leuven, Campus Pellenberg, Leuven, Belgium. geert.peersman@telenet.be. 3. Department of Orthopaedic Surgery, Ziekenhuis Netwerk Antwerpen, Campus Stuivenberg, Antwerp, Belgium.
Abstract
PURPOSE: The purpose of this study was to assess whether unicompartmental knee arthroplasty (UKA) results in better patient-reported and clinical outcome than total knee arthroplasty (TKA). The study hypothesis was UKA yields better patient-reported and clinical outcomes than TKA. METHODS: Our prospective cohort study compared patients who underwent medial UKA or TKA from February 2014 through June 2015. Forgotten Joint Score (FJS), the short form of the Knee Injury and Osteoarthritis Outcome Score (KOOS PS), EuroQOL Five Dimensions Questionnaire (EQ-5D), and the Knee Society Score (KSS) were completed at two weeks, six weeks, three months, six months, and one year post-operatively. The KOOS PS, EQ-5D, and the KSS were also documented pre-operatively. RESULTS: Fifty-seven patients (57 knees) were allocated to the UKA group and 62 patients (62 knees) to the TKA group. At baseline, no statistically significant differences were observed between groups regarding patient demographics and pre-operative scores. Except for FJS at 2 weeks (p = 0.326), all postoperative scores revealed significant differences as early as two weeks and up to 12 months (p < 0.05). CONCLUSIONS: Our findings suggest UKA patients are less aware of their joint replacements than TKA patients for medial osteoarthritis of the knee. UKA conserves more soft tissue and bone than TKA, which may be the reason for the differences observed.
PURPOSE: The purpose of this study was to assess whether unicompartmental knee arthroplasty (UKA) results in better patient-reported and clinical outcome than total knee arthroplasty (TKA). The study hypothesis was UKA yields better patient-reported and clinical outcomes than TKA. METHODS: Our prospective cohort study compared patients who underwent medial UKA or TKA from February 2014 through June 2015. Forgotten Joint Score (FJS), the short form of the Knee Injury and Osteoarthritis Outcome Score (KOOS PS), EuroQOL Five Dimensions Questionnaire (EQ-5D), and the Knee Society Score (KSS) were completed at two weeks, six weeks, three months, six months, and one year post-operatively. The KOOS PS, EQ-5D, and the KSS were also documented pre-operatively. RESULTS: Fifty-seven patients (57 knees) were allocated to the UKA group and 62 patients (62 knees) to the TKA group. At baseline, no statistically significant differences were observed between groups regarding patient demographics and pre-operative scores. Except for FJS at 2 weeks (p = 0.326), all postoperative scores revealed significant differences as early as two weeks and up to 12 months (p < 0.05). CONCLUSIONS: Our findings suggest UKA patients are less aware of their joint replacements than TKA patients for medial osteoarthritis of the knee. UKA conserves more soft tissue and bone than TKA, which may be the reason for the differences observed.
Authors: Matthew C Lyons; Steven J MacDonald; Lyndsay E Somerville; Douglas D Naudie; Richard W McCalden Journal: Clin Orthop Relat Res Date: 2012-01 Impact factor: 4.176
Authors: A M Davis; A V Perruccio; M Canizares; G A Hawker; E M Roos; J-F Maillefert; L S Lohmander Journal: Osteoarthritis Cartilage Date: 2009-01-31 Impact factor: 6.576
Authors: Robert B Bourne; Bert M Chesworth; Aileen M Davis; Nizar N Mahomed; Kory D J Charron Journal: Clin Orthop Relat Res Date: 2010-01 Impact factor: 4.176
Authors: Christiaan Rudolf Oosthuizen; Catherine Van Der Straeten; Innocent Maposa; Christian Hugo Snyckers; Duwayne Peter Vermaak; Sebastian Magobotha Journal: Int Orthop Date: 2019-09-12 Impact factor: 3.075