BioMed Research International / 2018 / Article / Tab 4

Research Article

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

Table 4

The bony boundary area of different age groups at different sagittal slices.

Bong Boundary Area (mm2)
Young Age GroupMiddle Age GroupOld Age Group

L3/4Entrance216.60±35.13176.91±31.38☆160.52±32.52★
Middle Slice183.02±43.11150.09±29.32☆139.16±28.01★
Exit189.66±53.69183.80±42.49158.61±41.52

L4/5Entrance195.72±37.32158.10±24.84☆148.94±24.98★
Middle Slice166.95±35.40143.64±22.20☆131.23±31.58★
Exit170.22±54.58181.01±36.52174.05±39.18

L5S1Entrance166.90±28.17151.94±29.26114.69±37.87★◆
Middle Slice154.57±22.53136.68±33.17125.37±22.80★
Exit189.17±27.92182.19±36.97140.72±20.95★◆

☆p<0.05 compared to the young age group ◆p<0.05 compared to the young age group ★p<0.05 compared to middle age group

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