Table 3.

Interobserver Reliability for the Measurement of the Tibial Slope on Lateral Radiograph and MRI Scan ^a

	MTPS			LTPS
	ICC	95% CI	P Value	ICC	95% CI	P Value
Radiograph	0.92	0.89-0.95	<.001	0.85	0.78-0.89	<.001
MRI (subchondral bone)	0.87	0.82-0.91	<.001	0.83	0.76-0.88	<.001
MRI (cartilage)	0.86	0.83-0.92	<.001	0.71	0.68-0.74	<.001

^a ICC, intraclass correlation coefficient; LTPS, lateral tibial plateau slope; MRI, magnetic resonance imaging; MTPS, medial tibial plateau slope.