Table 2.

Association between the grade of osteophytes and tibial spine index in each quadrant of the tibial plateaus

	Anteromedial	Anterolateral	Posteromedial	Posterolateral
Medial plateau
Medial tibial spine index	0.2 (p = 0.42)	0.3 (p = 0.21)	0.03 (p = 0.92)	0.2 (p = 0.56)
Lateral tibial spine index	0.1 (p = 0.77)	0.3 (p = 0.08)	0.5 (p = 0.11)	0.3 (p = 0.20)
Lateral plateau
Medial tibial spine index	0.2 (p = 0.45)	0.2 (p = 0.48)	0.2 (p = 0.31)	0.3 (p = 0.52)
Lateral tibial spine index	0.5 (p < 0.01)	0.4 (p = 0.06)	0.7 (p < 0.01)	0.6 (p = 0.06)