Wang J, et al. - Treatment variation in arthrodesis and halo/tong placement was examined in cervical spine injury patients. From 2000 to 2011, arthrodesis rates decreased for patients with cervical fracture without spinal cord injury (SCI), while arthrodesis rates increased for cervical dislocation and SCI patients. For cervical spine trauma, a rapid decrease in the rates of halo/tong placement at all hospitals was observed. Compared to non-teaching hospitals, teaching hospitals showed higher arthrodesis rates for patients with cervical fractures with SCI and higher halo/tong placement rates for patients with cervical dislocations. Individual hospital comparison showed 3.5-fold variation in arthrodesis rates in 2000-2002, which fell to 3.0-fold by 2009-2011.