Facet Tropism and Orientation: Risk Factors for Degenerative Lumbar Spinal Stenosis

Table 2

Facet orientation (FO) values of the study groups (control vs. stenosis) by lumbar levels, for each gender separately.

Variables	Males			Females
	Control ()	Stenosis ()	value	Control ()	Stenosis ()	value
FO L1-2 (degree)			0.133			0.079
FO L2-3 (degree)			<0.001			<0.001
FO L3-4 (degree)			<0.001			<0.001
FO L4-5 (degree)			<0.001			<0.001
FO L5-S1 (degree)			0.073			<0.001

SD: standard deviation.