Fig. 1From: Surgical treatment for basilar invagination with irreducible atlantoaxial dislocation: transoral atlantoaxial reduction plate fixation vs occipitocervical fixationA 64-year-old woman, diagnosed with basilar invagination with atlantoaxial dislocation, underwent a TARP procedure. Images of cervical lateral radiographs (a), sagittal MRI (b), and sagittal CT scan (c) before surgery showed evidence of basilar invagination with atlantoaxial dislocation and compression on the ventral medulla. Cervical radiographs (d, e) after a TARP operation showed well placement of device. Postoperative sagittal MRI (f) and sagittal CT scan (g) showed reduction of atlantoaxial dislocation with descent of the odontoid process and decompression on the ventral medulla. CT image (h) at 3 months after surgery revealed solid bone fusionBack to article page