"Jefferson or Hangman fracture"
"Gallie technique"
"Brooks-Jenkins technique"
"screw entry point location distal to the C1-C2 joint surfaces"
"screw entry point location in the mediolateral midpoint of the C2 pars slightly cranial to the C2-C3 facet joint"
"variably bone graft insertion between the C1 posterior arch and C2 lamina and sublaminar wiring and/or intraarticular C1-C2 facet joint decortication and fusion"
Expected headings
"Anterolateral approach"
"Posterior approach"
"Radiographic features"
"Plain radiograph"
"CT"
"MRI"
"Radiology report"
"inflammatory disease (e.g. rheumatoid arthritis)"
"screw-rod or screw-plate instrumentation with C1 lateral mass and C2 pars, pedicle or laminar screws"