期刊
MEDICAL ENGINEERING & PHYSICS
卷 51, 期 -, 页码 31-40出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.medengphy.2017.10.007
关键词
Total knee arthroplasty; Early recovery period; Physical activity; Pedometer; Step count
资金
- 360 Knee Systems
Total knee arthroplasty (TKA) is a standard treatment for patients with end stage knee Osteoarthritis (OA) to reduce pain and restore function. The aim of this study was to assess pre- and early post-operative physical activity (PA) with Fitbit Flex devices for patients with OA undergoing TKA and determine any benchmarks for expected post-operative activity. Significant correlations of pre-operative step count, postoperative step count, Body Mass Index (BMI) and Short Form 12 Physical Component Summaries (SF-12 PCS) were found. Mean step counts varied by 3,203 steps per day between obese and healthy weight patients, and 3,786 steps per day between those with higher and lower SF-12 PCS scores, suggesting the need for benchmarks for recovery that vary by patient pre-operative factors. A backwards stepwise regression model developed to provide patient specific step count predictions at 6 weeks had an R2 of 0.754, providing a robust patient specific benchmark for post-operative recovery, while population means from BMI and SF-12 subgroups provide a clinically practical alternative. (C) 2017 IPEM. Published by Elsevier Ltd. All rights reserved.
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