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ORIGINAL ARTICLE
Gazzetta Medica Italiana - Archivio per le Scienze Mediche 2019 January-February;178(1-2):44-50
DOI: 10.23736/S0393-3660.17.03703-2
Copyright © 2017 EDIZIONI MINERVA MEDICA
language: English
Knee arthroplasty until age 60: role of sports and other injuries
Leena RISTOLAINEN 1 ✉, Jyrki A. KETTUNEN 2, Liisa MONTIN 3, Arsi HARILAINEN 4, Jerker SANDELIN 4, Urho M. KUJALA 5
1 Orton Orthopedic Hospital and Orton Research Institute, Orton, Helsinki, Finland; 2 Arcada, University of Applied Sciences, Helsinki, Finland; 3 Research Institute Orton, Orton, Helsinki, Finland; 4 Orton Orthopaedic Hospital, Helsinki, Finland; 5 Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
BACKROUND: The primary aim of the study was to investigate how total knee arthroplasty (TKA) patients with underlying injuries differ in injury type and physical activity after the arthroplasty.
METHODS: A questionnaire was sent to TKA patients, < 60 years at surgery, and knee injury as the cause of knee OA. The final study group consisted of 70 patients.
RESULTS: Average age of patients at TKA was 51.8 years (Standard Deviation [SD] 5.2), and at follow-up 57.6 years (SD 6.5). Of the injuries, 26% were sports-related, 29% had occurred at work, 23% in traffic accidents, and 13% during leisure-time (no sports-related). Sports-related injuries had occurred at younger ages than others had (mean 23.4 vs. 35.2 years, P=0.001). Time from injury to arthroplasty was longer in patients with sports-related injuries compared to others (mean 26.6 vs. 17.4 years, P=0.003). At follow-up age-adjusted mean amount of weekly physical activity measured as leisure-time metabolic equivalent (MET) index (MET-hours/week) was higher in patients with sports-related injuries than in patients with other injuries (42.1 vs. 18.5, P=0.001).
CONCLUSIONS: Previous knee injury was the cause of severe knee osteoarthritis and TKA in 20% of the patients 60 years or younger. The time from injury to arthroplasty was longer among patients with sports-related than among those with others. Patients with previous sports-related knee injury were more physically active after arthroplasty than patients with others.
KEY WORDS: Osteoarthritis, knee - Arthroplasty, replacement, knee - Knee injury - Exercise