Posterior epidural migration of sequestered lumbar disc fragment causing cauda equina syndrome

Migración epidural posterior de fragmento de disco lumbar secuestrado que causa síndrome de cauda equina

Migração epidural posterior de fragmento de disco lombar sequestrado que causa síndrome da cauda equina

Posterior epidural migration (PEM) of a sequestered free lumbar disc fragment is rare. The rarity is due to presence of several anatomical restraints which restrict a free fragment to move to the posterior compartment. This unusual presentation of disc herniation appeared in the literature either as a single case report or in small series from two to six cases. Herein two new demonstrative cases will be presented with a brief review of the literature.

Cauda equina; Intervertebral disc displacement; Intervertebral disc; Surgical procedures; operative