Journal article
Clinical interpretability of quadriceps strength and gait speed performance in total knee arthroplasty: A longitudinal study
American Journal of Physical Medicine & Rehabilitation, Vol.102(5), pp.389-395
2023
PMID: 36728706
Abstract
Following a total knee arthroplasty (TKA), physical assessments of quadriceps strength and gait speed performance are often undertaken during rehabilitation. Our study aimed to improve their clinical interpretability by examining trajectory curves across levels of self-reported walking and stair climbing function.
A sample of 2,624 patients with primary TKA participated in this retrospective longitudinal study. Monthly, for 4 months post-surgery, quadriceps strength and gait speed were quantified. At the Month-6 timepoint, self-reported walking and stair climbing function was measured.
All physical measures improved nonlinearly over time. In mixed-effects models, greater quadriceps strength and gait speed over time were associated with higher Month-6 self-reported walking and stair climbing function (P-values<0.001). Steeper gains in quadriceps strength and gait speed were associated with higher levels of walking and stair-climbing function (interaction P-values<0.001). Amongst female patients who had great difficulty with stair ascent and ambulation, quadriceps strength trajectory curves plateaued after 8 weeks post TKA.
By stratifying trajectory curves across clinically interpretable functional levels, our findings potentially provide patients and clinicians a means to better interpret the continuous-scaled quadriceps strength and gait speed values. This information may be valuable when engaging patients in shared decision making and expectation setting.
Details
- Title
- Clinical interpretability of quadriceps strength and gait speed performance in total knee arthroplasty: A longitudinal study
- Authors
- Yong-Hao Pua (Corresponding Author) - Singapore General HospitalCheryl Lian-Li Poon (Author) - Singapore General HospitalFelicia Jie-Ting Seah (Author) - Sengkang General HospitalJohn Wei-Ming Tan (Author) - Singapore General HospitalEe-Lin Woon (Author) - Singapore General HospitalHwei-Chi Chong (Author) - Changi General HospitalJulian Thumboo (Author) - Singapore General HospitalRoss Allan Clark (Author) - University of the Sunshine Coast, Queensland, School of Health - Public HealthSeng-Jin Yeo (Author) - Singapore General Hospital
- Publication details
- American Journal of Physical Medicine & Rehabilitation, Vol.102(5), pp.389-395
- Publisher
- Lippincott Williams & Wilkins
- Date published
- 2023
- DOI
- 10.1097/PHM.0000000000002176
- ISSN
- 1537-7385
- PMID
- 36728706
- Organisation Unit
- School of Health - Public Health
- Language
- English
- Record Identifier
- 99705196202621
- Output Type
- Journal article
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- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Rehabilitation
- Sport Sciences
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