Neurosurgery
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The management of atlas fractures is controversial and hinges on the integrity of transverse atlantal ligament (TAL). ⋯ LMD > 7 mm on CT is not sensitive for TAL injury. Some atlas fractures with TAL injury can be managed with a cervical collar. Nonunion rates are not different between halo immobilization and cervical collar, but a strong selection bias precludes directly comparing the efficacy of these modalities. Age independently predicts nonunion.