Age- and sex-based recovery curves to track functional outcomes in older adults with total knee arthroplasty

Yong-Hao Pua; Felicia Jie-Ting Seah; Cheryl Lian-Li Poon; John Wei-Ming Tan; Ross Clark; Jennifer Suet-Ching Liaw; Hwei-Chi Chong

doi:10.1093/ageing/afx148

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Age- and sex-based recovery curves to track functional outcomes in older adults with total knee arthroplasty

Journal article

Peer reviewed

Age- and sex-based recovery curves to track functional outcomes in older adults with total knee arthroplasty

Yong-Hao Pua, Felicia Jie-Ting Seah, Cheryl Lian-Li Poon, John Wei-Ming Tan, Ross Clark, Jennifer Suet-Ching Liaw and Hwei-Chi Chong

Age and Ageing, Vol.47(1), pp.144-148

2018

DOI: https://doi.org/10.1093/ageing/afx148

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Abstract

total knee arthroplasty

knee

replacement

recovery curves

outcome measures

quantile regression

older people

Background: older adults with total knee arthroplasty (TKA) frequently undergo rehabilitation to address limited knee flexion range-of-motion, quadriceps weakness and gait speed limitations. This study aimed to develop age- and sex-specific recovery curves of knee flexion range-of-motion, quadriceps strength and fast gait speed post-TKA. Methods: a population-based sample of 2,987 patients undergoing primary TKA participated, of whom 2015 (68%) were 65 years of age or older. At 4, 8 and 12 weeks post surgery, knee flexion range-of-motion, quadriceps strength and fast gait speed were quantified. Quantile regression was used to determine the percentiles of the knee and gait measures. Results: the various knee and gait measures improved nonlinearly over time, with substantial improvements observed in the 1st 8-10 weeks post surgery. Age-specific, sex-specific recovery curves were developed to show the recovery patterns at multiple percentile levels. A web interface was created to facilitate easy computation of the percentile rank for a given outcome value. Conclusions: we have provided reference percentile values for knee flexion range-of-motion, quadriceps strength and gait speed recovery post-TKA. Such information may assist rehabilitation professionals in interpreting outcomes and quantifying deviations from the expected recovery pattern.

Details

Title: Age- and sex-based recovery curves to track functional outcomes in older adults with total knee arthroplasty
Authors: Yong-Hao Pua (Corresponding Author) - Singapore General Hospital
Felicia Jie-Ting Seah (Author) - Singapore General Hospital, Singapore
Cheryl Lian-Li Poon (Author) - Singapore General Hospital, Singapore
John Wei-Ming Tan (Author) - Singapore General Hospital, Singapore
Ross Clark (Author) - University of the Sunshine Coast, Queensland, Faculty of Science, Health, Education and Engineering
Jennifer Suet-Ching Liaw (Author) - Singapore General Hospital, Singapore
Hwei-Chi Chong (Author) - Singapore General Hospital, Singapore
Publication details: Age and Ageing, Vol.47(1), pp.144-148
Publisher: Oxford University Press
Date published: 2018
DOI: 10.1093/ageing/afx148
ISSN: 0002-0729
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy; School of Health - Public Health
Language: English
Record Identifier: 99450708202621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Geriatrics & Gerontology

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