Patient characteristics do not predict the change in physical functioning following arthroplasty measured by the HOOS-PS and KOOS-PS.

Braaksma, C; Oehlers, V; Veen, M R; Wolterbeek, N · J Orthop · 2020

prospective_cohort · Level II

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Abstract

Predicting personalized outcome after arthroplasty improves shared decision-making. The aim of this paper was to determine predictors of functional outcome measured by the Hip disability and Osteoarthritis Outcome Score - Physical function Shortform (HOOS-PS) or Knee injury and Osteoarthritis Outcome Score - Physical function Shortform (KOOS-PS) in patients undergoing total hip (n = 79) or total knee arthroplasty (n = 90) respectively. Patients were assessed at baseline and following arthroplasty. A multiple regression analysis showed that the included variables predicted the change score in HOOS-PS limited (<i>F</i> (8,66) = 3.139, <i>p</i> = 0.005, adjusted R<sup>2</sup> = 0.188) and the KOOS-PS not significantly (<i>F</i> (8,73) = 0.837, <i>p</i> = 0.573, adjusted <i>R</i> <sup><i>2</i></sup>  = -0.016). Concluding, baseline characteristics cannot be used for personalized prediction using the KOOS-PS and HOOS-PS.