IKDC or KOOS: which one captures symptoms and disabilities most important to patients who have undergone initial anterior cruciate ligament reconstruction?

Hambly, Karen and Griva, Konstadina (2010) IKDC or KOOS: which one captures symptoms and disabilities most important to patients who have undergone initial anterior cruciate ligament reconstruction? American journal of sports medicine, 38 (7). pp. 1395-1404. ISSN 1552-3365. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1177/0363546509359678

Abstract

Background: Knee-specific patient-reported outcome measures are frequently used after anterior cruciate ligament reconstruction but little is known about whether they measure outcomes important to patients. Purpose: The aim of this study was to identify which instrument, the Knee injury and Osteoarthritis Outcome Score (KOOS) or the International Knee Documentation Committee Subjective Knee Form (IKDC), captures symptoms and disabilities most important to patients who have undergone initial anterior cruciate ligament reconstruction. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Data were collected from 126 participants of an Internet knee forum. A self-reported online questionnaire was developed consisting of demographic and surgical data, the Tegner Activity Scale, and 49 consolidated items from the KOOS and the IKDC. Item importance, frequency, and frequency-importance product were calculated. Results: Seventy-eight percent of the items from the IKDC were experienced by more than half of the patients, compared with 57% from the KOOS. Items extracted from the Function in Sports/Recreation and Quality of Life KOOS subscales were highly important to this group of patients. For patients 12 months or more after anterior cruciate ligament reconstruction, 94% of the IKDC items had a frequency-importance product of 1 or less compared with 86% of the KOOS items. Conclusion: Overall, the IKDC items outperformed the KOOS items on all of the 5 criteria with the exception of the frequency-importance product for patients who were 12 months after anterior cruciate ligament reconstruction. The KOOS Function in Sports/Recreation and Knee-Related Quality of Life subscales outperformed the IKDC for the total cohort as well as for male and female subgroups. However, differences in individual items were not always evident from either total scale or subscale ratings. Studies should use patient-reported outcomes that reflect patients' most important concerns and further prospeptive longitudinal research is required in this area.

Item Type: Article
Subjects: R Medicine > RD Surgery
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Faculties > Social Sciences > School of Sport and Exercise Studies
Depositing User: Karen Hambly
Date Deposited: 20 Jan 2011 19:14
Last Modified: 14 Apr 2014 13:59
Resource URI: http://kar.kent.ac.uk/id/eprint/26265 (The current URI for this page, for reference purposes)
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