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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXI | Pages 20 - 20
1 May 2012
K. S W. N W. M
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Introduction

The purpose of this study was to examine the effects of baseline mental health on functional outcomes after primary knee arthroplasty by reviewing the data collected in a multi-centre prospective observational cohort study. We hypothesised that those patients with lower baseline mental health status would demonstrate significantly worse outcomes vs their counterparts with higher mental status following primary total knee arthroplasty.

Methods

Data from a multi-centre prospective cohort study of PS (posterior stabilising implant) and CR (cruciate retaining implant) primary knee arthroplasty were compared to determine the relationship between baseline mental health status and functional outcomes post-surgery. Subjects were followed from the time of the index surgery to monitor outcomes and complications. Validated quality of life instruments, including SF-36, WOMAC, Knee Society Score, and an activity scale were used. Changes from baseline to 1 year on the SF-36 and WOMAC were evaluated. Regression analysis was completed to assess changes in WOMAC based on baseline SF-36 scores. All analyses were adjusted for age, BMI, gender, and implant type.