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Traumatic L5/S1 bilateral locked facets with bilateral pars fractures - A case report
Fawwaz Bin Shahab1, Amna Ghouri1, Manzar Hussain1
1Department of Neurosurgery, Liaquat National Institute of Postgraduate Studies, Karachi, Pakistan.
Background:
Although rare, traumatic lumbosacral (L/S) Grade I spondylolisthesis (i.e., Lumbar locked facet syndrome) is characterized by unilateral or bilateral facet dislocations.
Case Description:
A 25-year-old male presented following a high velocity road traffic accident with back pain and tenderness at the L/S junction. His radiologic images showed bilateral locked facets at the L5/S1 level with Grade 1 spondylolisthesis, bilateral pars fractures, acute traumatic L5/S1 disc herniation, and disruption of the anterior and posterior longitudinal ligaments. After undergoing a L4-S1 laminectomy with pedicle screw fixation, he became asymptomatic and remained neurologically stable.
Conclusion:
L5/S1 facet dislocation whether unilateral or bilateral needs to be diagnosed early and treated with realignment and instrumented stabilization.
