Table 5 Assessment of interrater reliability based on the RPOA diagnostic criteria
Interrater percentage agreement | |
|---|---|
Pelvic tilt parameter | 99% |
Initial Tonnis angle | 97% |
Superior joint space narrowing | 94% |
Leg length shortening | 96% |
Superior acetabular bone loss | 93% |
Acetabular volumetric widening | 94% |
Femoral head destruction | 96% |
Tonnis angle progression | 94% |
Lateral subluxation progression | 94% |