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Fig. 1 | Journal of Orthopaedic Surgery and Research

Fig. 1

From: Predictability of the effects of facet joint infiltration in the degenerate lumbar spine when assessing MRI scans

Fig. 1

Quantitative measurements: a Sagittal T2, b, c, e, f axial T2 and d sagittal T1 images. a Posterior disc height [21]. b Neuroforaminal antero-posterior distance at the level where the root can be seen to traverse it [22] and c at the level of the intervertebral disc. The blue median arrow shows the sagittal diameter of the dural sac at that level. d Cross-sectional area of the neuroforamen [23], e ligamentous interfacet distance [26] as a line connecting the ventral joint space of the facet joints between the inner surface of the flaval ligaments and f cross-sectional area of the dural sac [27,28,29] at the level of the intervertebral disc. The lateral margins of the dura in the neuroforaminal area were extrapolated from the images above and below

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