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Fig. 8 | Insights into Imaging

Fig. 8

From: The current role and future directions of imaging in failed back surgery syndrome patients: an educational review

Fig. 8

Axial MRI of the postoperative lumbar spine at level L4–L5. A Axial T2-weighted image showing soft tissue occupying the subarticular zone bilaterally. Tissue shows to have an intermediate signal intensity. Cauda equina roots are displaced and course more central in the dural sac. B Axial T1-weighted image showing the tissue characteristics of the known soft tissue in the bilateral subarticular zone. On native T1-weighted images, an intermediate signal intensity is observed. C Post-contrast axial T1-weighted image showing homogeneous enhancement of the known soft tissue in the subarticular zone bilaterally. Based on this enhancement, a suggestion of postoperative epidural fibrosis was made

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