• Franz Jooji Onishi, Jefferson Walter Daniel, Andrei Fernandes Joaquim, Alécio Cristino Evangelista, de Freitas BertoliniEduardoEDivision of Neurosurgery, Servidor Público Estadual Hospital, São Paulo, SP, Brazil., Fernando Rolemberg Dantas, NetoEloy RusafaERNeurology Department Division of Neurosurgery, University of São Paulo School of Medicine, São Paulo, Brazil., Marcelo Luiz Mudo, Roger Brock, Jerônimo Buzetti Milano, and Ricardo Vieira Botelho.
• Division of Neurosurgery, Federal University of São Paulo, UNIFESP, R. Borges Lagoa, 1080 sala 408, São Paulo, SP, CEP 04038-001, Brazil. franzonishi@gmail.com.
• Eur Spine J. 2022 Oct 1; 31 (10): 266426742664-2674.

BackgroundTraumatic facet dislocations in the subaxial cervical spine, also known as locked facets, are commonly associated with neurological deficits. The fear of the presence of an associated traumatic disc herniation and consequent neurological worsening usually causes a delay in the spinal realignment. This study's aim is an analysis of safety and efficacy when treating acute cervical traumatic facet dislocations using cranial-cervical traction or posterior open reduction and fixation in the presence of disc herniations.MethodsInclusion criteria addressed the following patient groups: (1) MRI diagnosis of traumatic cervical facet dislocations with disc herniation, (2) intervention: either cranial-cervical traction or posterior open reduction and fixation, (4) neurological outcomes after treatment, (5) adult 18 plus years of age, (6) sample sizes greater than 20 patients, (7) English language publication. The following databases and search tools were analyzed: MEDLINE (PubMed), Cochrane Central Register of Controlled Trials (CENTRAL), Google Scholar, and the clinical trial registries (ClinicalTrials.gov), October 2021.ResultsSix studies were found, 2 with posterior open reduction and fixation and 4 with cranial-cervical traction, totalizing 197 patients. Neurological worsening was reported only in 1 case (0.5%).ConclusionsTraumatic disc herniation in cervical facet dislocations is not an absolute contraindication of cranial-cervical traction or posterior open reduction. Early realignment of the spine could bring more neurological benefits than waiting for an MRI or surgical discectomy. However, caution is needed in this review's data interpretation until prospective and well-designed studies are performed.© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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