Fig. 2From: Nerve root herniation with entrapment in the facet joint gap after lumbar decompression surgery: a case presentationMRI after decompression surgery and sudden sciatica onset: Sagittal (a-b) and axial (c-d) T2 weighted images showing no hematoma or intraspinal compression. An effusion of the facet joint is noted. Zoomed sagittal (e) and axial (f) image shows herniation of a nerve root (white arrows) into the facet joint gapBack to article page