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Revista de la Asociación Argentina de Ortopedia y Traumatología

On-line version ISSN 1852-7434


RICCIARDI, Guillermo A; GARFINKEL, Ignacio G; CARRIOLI, Gabriel G  and  RICCIARDI, Daniel O. Lesión dural asociada a fracturas de charnela toracolumbar y lumbares con compromiso del muro posterior: Relación con las variables del sistema de clasificación AOSpine. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2019, vol.84, n.3, pp.216-223. ISSN 1852-7434.

Introduction: Fractures of the thoracolumbar spine can trigger thecal sac injuries due to the impingement of the cauda equina between bone fragments. Objective: To carry out a retrospective analysis of clinical and radiological variables, the AOSpine Classification System and the possibility of secondary thecal sac injury in a series of thoracolumbar burst fractures treated at our center. Materials and Methods: A retrospective, observational study of a series of patients with thoracolumbar fractures with compromise of the posterior vertebral body wall, who underwent surgery at our center between January 2012 and December 2017. Results: Forty-six patients were included, 16 of which had secondary thecal sac injury. The differences in the variables-percentage of spinal canal involvement, interpedicular distance, angle of the retropulsed fragment, neurological deficit and type C fractures-were statistically significant according to the comparison made with the presence or absence of thecal sac injury (p=0.046, p=0.007, p=0.046, p=0.004, p=0,001 respectively). Conclusions: This study suggests that traumatic thecal sac injury could be suspected when managing burst fractures with prominent fragments in the posterior vertebral body wall, acute angle of the retropulsed fragment, severe compression of the spinal canal, wide interpedicular distance, neurological deficit and fracture displacement (fracture type C according to the AOSpine Classification System).

Keywords : Thoracolumbar fractures; Thecal sac injury; Preoperative planning.

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