Cross-cultural adaptation and validation of Singapore English and Chinese versions of the Knee injury and Osteoarthritis Outcome Score (KOOS) in Asians with knee osteoarthritis in Singapore

Abstract

The Singapore English and Chinese KOOS were well accepted and demonstrated acceptable reliability and validity in Asian patients with knee OA in Singapore.

The Knee Injury and Osteoarthritis Outcome Score (KOOS): A Review of Its Psychometric Properties in People Undergoing Total Knee Arthroplasty

“…16 Minimal (less than 5%) or no missing data 39 and high prevalence of patient completion (99.5%) 22 support the ease of use of the KOOS. The items pertaining to the function in sport and recreation subscale were not applicable for 74% of patients in 1 study and were thus treated as missing items.…”

“…8 and the English version (ICC = 0.65). 39 In addition, the knee-related quality of life subscale of the Chinese version achieved an ICC value of 0.60. 39 It is important to note that de Groot et al 8 only evaluated the reliability using patients who had a revision of the TKA.…”

“…In addition, only half of the patients completed the retest in 2 studies. 27, 39 Kessler et al 16 used Spearman rank correlation coefficients and obtained testretest reliability values for the KOOS that ranged from 0.69 to 0.78.…”

“…Hypotheses involving correlation or mean differences were formulated a priori in 5 of the studies. 7,8,22,27,39 No assessment of criterion validity was undertaken in any of the included studies.…”

Therapeutic Effects of Short-Term Monochromatic Infrared Energy Therapy on Patients With Knee Osteoarthritis: A Double-Blind, Randomized, Placebo-Controlled Study

“…The KOOS has demonstrated acceptable validity and reliability. 35 The Lysholm Knee Scale measures knee symptoms (disability) and physical findings (impairment). 10 It contains 8 questions with a 100-point rating scale, with higher scores representing greater function.…”