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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 3 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 3

From: Unexplained back pain and sciatica: the added value of upright dynamic MRI of the lumbar spine in cases of clinical/radiological mismatch

Fig. 3

Sagittal T2WI MRI of the lumbar spine acquired in neutral (A), flexion (B) and extension (C) positions while the patient is siting. Although there is no significant thecal sac compression in the first two images, in extension, there is significant buckling of the ligamentum flavum at the levels of L3–L4 and L4–L5 (arrows). Associated disc protrusions with subsequent canal stenosis

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