Table 2.

Mean (± SD) apparent trabecular number for the anterior/posterior, vertical and oblique trabeculae obtained from the longitudinal section for the patellar facets

	Facets	Vertical	A/P	Oblique
Proximal region	L1	11.2 ± 5.2	39.1 ± 5.1	49.7 ± 6.3
	C1	27.6 ± 5.1	51.3 ± 6.2	21.1 ± 4.5
	M1	29.5 ± 4.9	45.2 ± 5.4	25.3 ± 5.7
Intermediate region	L2	22.9 ± 5.6	40.2 ± 5.2	36.9 ± 6.1
	C2	26.1 ± 4.2	52.1 ± 4.6	21.8 ± 7.1
	M2	26.2 ± 4.4	43.8 ± 3.9	30.9 ± 5.2
Distal region	L3	21.7 ± 5.5	29.3 ± 6.8	49.9 ± 4.4
	C3	29.6 ± 5.3	49.1 ± 6.6	21.5 ± 5.6
	M3	25.1 ± 4.2	49.2 ± 5.5	25.7 ± 4.2
Average lateral (L1, L2 and L3)		18.6 ± 5.4	36.2 ± 5.7	45.5 ± 5.6**
Average central (C1, C2 and C3)		27.8 ± 4.9*	50.8 ± 5.8*	21.5 ± 5.7
Average medial (M1, M2 and M3)		26.9 ± 4.5*	46.1 ± 4.9*	27.3 ± 5.0

^*Significantly different from the lateral values P < 0.05.

^**Significantly different from the central and medial values, P < 0.05.