Evaluation of Knee-Specific Patient-Reported Outcome Measures Using Rasch Analysis
Journal of Sport Rehabilitation
|February 28, 2020
Summary
Patient-reported outcome measures (PROMs) for knee function show poor measurement properties. Further research is needed to develop better PROMs for high-functioning individuals recovering from knee injuries.
Area of Science:
- Orthopedics
- Rehabilitation Medicine
- Biostatistics
Background:
- Patient outcomes after knee injury require robust assessment tools.
- Patient-reported outcome measures (PROMs) are crucial for evaluating knee function.
- Limited Rasch model analysis exists for knee injury PROMs.
Purpose of the Study:
- Evaluate measurement properties of knee injury PROMs using Rasch analysis.
- Identify limitations in current PROMs for knee-related function.
Main Methods:
- Cross-sectional study in a clinical setting.
- Rasch partial credit model applied to KOOS, IKDC, and Marx scales.
- Sample of 239 adults with knee injuries.
Main Results:
- KOOS and IKDC exhibited significant ceiling effects.
- 35 out of 65 items demonstrated poor measurement properties.
- Response options and measurement precision showed limitations.
Conclusions:
- Current knee injury PROMs have significant measurement deficiencies.
- Need for novel PROMs tailored for high-functioning populations.
- Ensuring reliable outcome measurement during recovery is essential.
