Physical Performance and Patient-Reported Outcomes Remain Stable at 5 Years After Total Knee Arthroplasty
Issued Date
2025-01-01
Resource Type
eISSN
2666061X
Scopus ID
2-s2.0-86000780413
Journal Title
Arthroscopy, Sports Medicine, and Rehabilitation
Rights Holder(s)
SCOPUS
Bibliographic Citation
Arthroscopy, Sports Medicine, and Rehabilitation (2025)
Suggested Citation
Ruangsomboon P., Ruangsomboon O., Anusitviwat C., Ravi B., Unnanuntana A. Physical Performance and Patient-Reported Outcomes Remain Stable at 5 Years After Total Knee Arthroplasty. Arthroscopy, Sports Medicine, and Rehabilitation (2025). doi:10.1016/j.asmr.2025.101104 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/106778
Title
Physical Performance and Patient-Reported Outcomes Remain Stable at 5 Years After Total Knee Arthroplasty
Corresponding Author(s)
Other Contributor(s)
Abstract
Purpose: To evaluate changes in physical performance tests (PPTs) and patient-reported outcome measures (PROMs) at baseline, 1 year after total knee arthroplasty (TKA), and a minimum of 5 years after TKA. Methods: We enrolled patients who underwent TKA between 2013 and 2015 performed by a single arthroplasty surgeon at Siriraj Hospital, Mahidol University, Bangkok, Thailand. We evaluated PPTs and PROMs over a minimum 5-year follow-up period to assess changes over time, identified independent factors associated with PPT deterioration, and determined TKA survivorship. Results: The study included 126 participants with a mean age of 77.8 years. The average follow-up time was 7.4 ± 2.3 years. PPTs and PROMs changed significantly over time from baseline. However, the 2-minute walk test and timed up-and-go test results slightly declined after 1 year but did not attain minimal clinically important differences, and PROMs were maintained and showed no clinically significant changes after 1 year. Hospitalizations owing to complex medical conditions or trauma were independently associated with PPT deterioration. There was a 98.8% survivorship rate at 7.6 years. Conclusions: In an Asian population undergoing TKA, PPTs and PROMs are maintained within acceptable ranges for at least 5 years after primary TKA. Trauma or hospitalizations arising from complex medical conditions were found to be associated with functional decline. A combined evaluation of PPTs and PROMs is advocated for a comprehensive assessment of patients after TKA. Level of Evidence: Level III, cohort study.