Post Traumatic L5-S1 Dislocation
Drissi Ghassen *
Department of Orthopedic Surgeon, Faculty of Medicine, University of Tunis, La Rabta Hospital, Tunisia.
Farid Harrar
Department of Orthopedic Surgeon, Faculty of Medicine, University of Tunis, La Rabta Hospital, Tunisia.
Mohamed Khaled
Department of Orthopedic Surgeon, Faculty of Medicine, University of Tunis, La Rabta Hospital, Tunisia.
*Author to whom correspondence should be addressed.
Abstract
Lumbosacral dislocations are rare disorders. We report here the case of a 66-year-old man victim of a heavy load crush with right lumbar impact point causing lumbar trauma.
The examination showed a lumbar swelling corresponding to a subcutaneous hematoma. There were no signs of spinal nerves injury.
Radiographic examination showed L5-S1 anterolisthesis grade II with staged breaks of the transverse processes of L2 to L5. Computed Tomography Scan confirmed these findings and also revealed a bilateral anterior and asymmetric anterior dislocation of the L5 vertebra on the sacrum without evidence of disc herniation.
The patient underwent surgery within 24 hours. After L5 laminectomy, L5-S1 discectomy and segmental reduction and stabilisation by lumbo-sacro-iliac arthrodesis.
After 10-month follow-up, the patient was satisfied and did not show any discomfort.
Keywords: Post traumatic, L5-S1 anterolisthesis, grade II, laminectomy, lumbo-sacro-iliac arthrodesis