Table 3.

Inter- and Intraobserver Reliabilities of the Medial Meniscal Extrusion Measurements ^a

	Intraobserver
Meniscal State	Observer 1	Observer 2	Observer 3	Interobserver b
Intact
0° of flexion	0.969 (0.914-0.992)	0.881 (0.705-0.965)	0.945 (0.853-0.985)	0.896 (0.732-0.971)
30° of flexion	0.910 (0.766-0.975)	0.935 (0.828-0.982)	0.887 (0.713-0.968)	0.817 (0.549-0.947)
60° of flexion	0.877 (0.693-0.965)	0.897 (0.741-0.971)	0.842 (0.626-0.953)	0.872 (0.686-0.963)
90° of flexion	0.900 (0.741-0.972)	0.948 (0.861-0.986)	0.926 (0.802-0.979)	0.718 (0.394-0.912)
Segmental medial defect
0° of flexion	0.917 (0.787-0.977)	0.847 (0.622-0.955)	0.952 (0.868-0.987)	0.874 (0.655-0.965)
30° of flexion	0.983 (0.953-0.995)	0.980 (0.944-0.995)	0.953 (0.873-0.987)	0.919 (0.693-0.980)
60° of flexion	0.939 (0.838-0.983)	0.935 (0.823-0.982)	0.937 (0.834-0.982)	0.939 (0.837-0.983)
90° of flexion	0.925 (0.801-0.979)	0.923 (0.799-0.978)	0.959 (0.883-0.989)	0.618 (0.269-0.871)
Inside-out
0° of flexion	0.859 (0.650-0.959)	0.778 (0.507-0.932)	0.882 (0.705-0.966)	0.564 (0.195-0.848)
30° of flexion	0.867 (0.670-0.961)	0.813 (0.564-0.944)	0.929 (0.805-0.980)	0.582 (0.125-0.866)
60° of flexion	0.704 (0.377-0.906)	0.749 (0.436-0.923)	0.788 (0.511-0.936)	0.589 (0.114-0.871)
90° of flexion	0.772 (0.496-0.930)	0.895 (0.733-0.970)	0.830 (0.598-0.950)	0.570 (0.095-0.863)
Anchor + inside-out
0° of flexion	0.869 (0.672-0.962)	0.809 (0.555-0.943)	0.861 (0.658-0.960)	0.780 (0.500-0.933)
30° of flexion	0.903 (0.751-0.972)	0.900 (0.746-0.971)	0.903 (0.751-0.973)	0.772 (0.406-0.934)
60° of flexion	0.851 (0.640-0.956)	0.852 (0.645-0.957)	0.865 (0.673-0.961)	0.647 (0.214-0.890)
90° of flexion	0.925 (0.805-0.979)	0.757 (0.453-0.926)	0.809 (0.556-0.943)	0.602 (0.214-0.867)

^a Data are reported as intraclass correlation coefficient (95% CI).

^b Interobserver reliability was assessed from the measurements between the 3 observers.