Unusual posterior epidural migration of intervertebral herni
Disc herniation is one of most common causes of spine surgery. Because of the presence of posterior longitudinal ligaments, disc fragments often migrate into the ventral epidural space. A posterior epidural herniation of a disc fragment is a rare occurrence.

Published in the Malaysian Orthopaedic Journal, the authors report two cases of posterior migrated disc fragments, with, radiological and clinical findings. Because of the rarity of a posterior migration of the intervertebral disc fragments, a differential diagnosis can be challenging.

This painful syndrome associated with neurological lower limb deficits can be confused initially, with other posterior epidural spaceoccupying lesions such as tumours, abscess or hematomas. A gadolinium-enhanced MRI scan is the gold standard for a correct diagnosis.

Learning Point:-
-Early surgical decompression of the spine with a posterior approach remains the optimal technique in ensuring the best possible outcome for the patient.

Read in detail here: http://www.morthoj.org/2018/v12n3/posterior-migration-herniated-disc.pdf