Secondary posterior internal fixation after transoral anterior atlantoaxial release under 3D operative microscopy for irreducible atlantoaxial dislocation

Objective To explore the clinical efficacy of secondary posterior internal fixation after transoral anterior atlantoaxial release under 3D operative microscopy for treatment of irreducible atlantoaxial dislocation. Methods From January 2014 to May 2016, 12 patients with irreducible atlantoaxial dislocation were treated with secondary posterior internal fixation after transoral anterior atlantoaxial release under 3D operative microscopy in...