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Development of the Knee Numeric-Entity Evaluation Score (KNEES-ACL): a condition-specific questionnaire
J D Comins1, M R Krogsgaard, J Brodersen
1Section for Sports Traumatology, Department of Orthopedic Surgery, Copenhagen University Hospital - Bispebjerg, Copenhagen, Denmark; Research Unit and Section of General Practice, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark.
Scandinavian Journal of Medicine & Science in Sports
|May 21, 2013
Summary
Researchers developed a new patient-reported outcome measure (PROM) for anterior cruciate ligament (ACL) deficiency. This 55-item instrument, validated by patients, assesses treatment effects and has face and content validity.
Area of Science:
- Orthopedics
- Rehabilitation Medicine
- Patient-Reported Outcomes
Background:
- Patient-related outcome measures (PROMs) are crucial for evaluating treatment efficacy in anterior cruciate ligament (ACL) deficiency.
- Ensuring the relevance and comprehensiveness of PROM items requires patient input for content validity.
Purpose of the Study:
- To construct a condition-specific PROM for patients with ACL deficiency.
- To ensure the developed PROM possesses face and content validity through patient-centered methods.
Main Methods:
- Conducted focus groups and interviews with patients pre- and post-ACL reconstruction.
- Utilized 157 items from a literature search as a basis for content generation.
- Achieved content saturation through three focus groups and seven interviews.
Main Results:
- Assembled a 55-item pilot PROM with six conceptual domains.
- Thirty-eight items from the literature search were directly endorsed by patients.
- Identified 12 new item themes with verbatim patient content, along with five modified items.
Conclusions:
- A condition-specific PROM for ACL deficiency has been successfully constructed.
- The developed instrument demonstrates face and content validity.
- Future steps include a pilot survey to assess psychometric properties using Rasch measurement theory.
