Abstract
BACKGROUND CONTEXT
This is a case report of a right posterolateral L5-S1 disc herniation that migrated to the left cephalad level to impinge on the left L5 nerve root as it exited the dura. The resultant free fragment migration is a rare variation of a posterolateral disc disruption.
PURPOSE
The purpose is to report a rare variation of lumbar disc herniation not previously reported in the literature.
STUDY DESIGN/SETTING
Case report.
PATIENT SAMPLE
A 60-year-old white woman.
OUTCOME MEASURES
Resolution of the patient's left lower extremity symptoms.
METHODS
Not applicable.
RESULTS
The patient experienced resolution of most of her left lower extremity symptoms after a slightly modified microscopically assisted lumbar hemilaminectomy, discectomy and nerve root decompression.
CONCLUSIONS
This is a rare right to left migration of a sequestrated disc herniation, which was effectively treated with surgery.
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