Table 2.

Lateral meniscal extrusion in the healthy and surgically treated (injured) knees in Group II

	Ultrasound		p value	MRI		p value
	Healthy (n = 10)	Injured (n = 10)		Healthy (n = 10)	Injured (n = 10)
Lateral ME [mm]	2.6 ± 0.5	3.1 ± 0.9	0.021*	1.2 ± 0.7	2.3 ± 0.7	< 0.001*

Measurements of lateral meniscal extrusion are presented as mean ± standard deviation

ME meniscal extrusion; n number of investigated knees

*Statistically significant difference between the healthy and surgically treated (injured) knees (p < 0.05)