Validation of the Spanish Version of the Knee Injury and Osteoarthritis Outcome Score (KOOS) for Elderly Patients With Total Knee Replacement

• Published in: Journal of orthopaedic research 2019-10, Vol.37 (10), p.2157-2162
• Main Authors: Lizaur‐Utilla, Alejandro, Miralles‐Muñoz, Francisco A., Gonzalez‐Parreño, Santiago, Lopez‐Prats, Fernando A.
• Format: Article
• Language: English
• Subjects: Aged; Aged, 80 and over; Arthroplasty, Replacement, Knee; clinimetric property; elderly patient; Female; Humans; knee osteoarthritis; KOOS; Male; Osteoarthritis, Knee - rehabilitation; Osteoarthritis, Knee - surgery; Patient Reported Outcome Measures; Prospective Studies; Quality of Life; Recovery of Function; Reproducibility of Results; Surveys and Questionnaires; total knee replacement; validation
• ISSN: 0736-0266; 1554-527X
• DOI: 10.1002/jor.24386

ABSTRACT The purpose of this study was to validate the Knee Injury and Osteoarthritis Outcome Score (KOOS) for elderly patients who undergo total knee replacement (TKR). The validated Spanish versions of the KOOS and Medical Outcomes Study 36‐Item Short‐Form Health Survey (SF‐36) questionnaires were applied to 137 patients (mean age 72.3, SD 7.5 years). Test–retest data were collected with an intermediate period of 1–2 weeks. To evaluate the clinimetric properties of the KOOS, internal consistency (Cronbach's α), reproducibility (intraclass correlation coefficient [ICC]), construct validity (Spearman's correlation), responsiveness (effect sizes [ES], and standardized response mean [SRM]), and floor and ceiling effects (