The Influence of Muscle Weakness on the Association Between Obesity and Inpatient Recovery From Total Hip Arthroplasty

Authors Ellen Oosting, Thomas J. Hoogeboom, Jaap Dronkers, M. Visser, R.P. Akkermans, Nico L.U. van Meeteren
Published in The Journal of Arthtroplasty
Publication date 2017
Research groups Innovation of Movement Care
Type Article


There is ongoing discussion about whether preoperative obesity is negatively associated with inpatient outcomes of total hip arthroplasty (THA). The aim was to investigate the interaction between obesity and muscle strength and the association with postoperative inpatient recovery after THA. Preoperative obesity (body mass index (BMI)>30 kg/m2) and muscle weakness (hand grip strength <20 kg for woman and <30 kg for men) were measured about 6 weeks before THA. Patients with a BMI<18.5 kg/m2 were excluded. Outcomes were delayed inpatient recovery of activities (>2 days to reach independence of walking) and prolonged length of hospital stay (LOS, >4 days and/or discharge to extended rehabilitation). Univariate and multivariable regression analyses with the independent variables muscle weakness and obesity, and the interaction between obesity and muscle weakness, were performed and corrected for possible confounders.

Language English
Published in The Journal of Arthtroplasty
Year and volume 32 6
Key words body mass index, heupartroplastiek, spierkracht, obesitas
Page range 1918-1922

Innovation of Movement Care