Three-Dimensional Morphological Characteristics of Lower Lumbar Intervertebral Foramen with Age

Table 3

Results of SP-IFE grouped in different lumbar level for males.

		Male
		Entrance	Range
SP-IFE(mm)	L3/4	12.48±1.10	9.69-14.79
	L4/5	13.52±1.49☆	9.31-16.43
	L5S1	12.48±1.10◆★	12.88-20.13

☆p<0.05 Compared with the young group ◆p<0.05 Compared with the young group ★p<0.05 Compared with mid-aged group