Figure 1
From: Gender differences in spinal mobility during postural changes: a detailed analysis using upright CT
Representative image of foraminal height and bone boundary area. (A) Representative Axial View of L4/L5 Foramen. The solid line shows the foraminal height (FH). FH is defined as the maximum distance between the lower edge of the superior pedicle and the upper edge of the inferior pedicle. (B) 3D Reconstruction of L4/L5 Foramen. Dotted circle indicates the bone boundary area (BBA) of the foramen. BBA is defined as the area enclosed by the posterior edge of the vertebral body, the lower edge of the superior pedicle, the anterior edge of the inferior articular process, the anterior edge of the superior articular process, and the upper edge of the inferior pedicle.
