• Alan H Daniels, Atul A Deodhar, and Robert A Hart.
• Department of Orthopedics and Rehabilitation, Oregon Health and Science University, Portland, OR 97201, USA.
• Spine J. 2009 Jan 1;9(1):e1-4.

Background ContextTraumatic lumbosacral dislocation injuries are rare, high-energy injuries that are challenging to surgically manage.PurposeTo report a patient with a traumatic spondyloptosis of L5 on S1 as a result of bilateral pedicle fractures of L4 and L5 occurring during a motor vehicle accident, concurrent with a tonic-clonic seizure. The mechanism and treatment of the injury are discussed.Study DesignClinical case report and literature review.MethodsA staged circumferential fusion was performed with posterior reduction of L5 to the sacrum and instrumentation and fusion from L2 to the pelvis, followed 12 days later by anterior diskectomies and arthrodesis from L3 to S1.ResultsNear anatomic reduction and solid fusion were obtained and maintained at 3-year follow-up. The patient remained neurologically intact in all lumbosacral roots throughout the course of treatment.ConclusionsThe injury pattern described is quite rare. This case of multilevel, bilateral pedicle fracture with traumatic L5-S1 spondyloptosis was successfully treated by circumferential reduction and arthrodesis without neurological injury.

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