 Cervical spine:There has been prior suboccipital craniotomy for Chiari decompression, reconstituting a posterior CSF space. There is cerebellar ectopia, with the right cerebellar tonsil demonstrating a more pointed morphology.There are no fractures or subluxations. The marrow signal is benign. The cervical cord is normal in signal. The visualized paraspinal contents are unremarkable. There is no MRI evidence of ligamentous injury.There are no significant degenerative changes or stenoses.Thoracic spine:Horizontal fractures are noted through the T12 vertebra involving anterior, middle, and posterior columns consistent with the history of Chance fracture. This is associated with significant superior endplate compression deformity, with approximately 50% loss of vertebral body height anteriorly. There is mild retropulsion of approximately 3-4 mm encroaching the anterior CSF space. Adjacent to this, there is a small focus of T2 hyperintensity within the conus. There is also splaying of the T11 and T12 spinous processes with significant interspinous and supraspinous ligamentous injury. There is also overlying soft tissue injury.There are no other fractures. Remaining vertebral body heights are maintained. Other than the conus, and the thoracic cord is normal in signal. There are no significant degenerative changes or stenoses.Lumbar spine:Note is made of sacralization of L5 with a rudimentary L5/S1 disc.Alignment is anatomic. There are no fractures or subluxations. The marrow signal is benign. The visualized intra-abdominal and paraspinal contents are unremarkable. There are no significant degenerative changes or stenoses.
1.There has been prior suboccipital craniotomy for Chiari decompression, reconstituting a posterior CSF space. There is cerebellar ectopia, with the right cerebellar tonsil demonstrating a more pointed morphology.2.Horizontal fractures are noted through the T12 vertebra involving anterior, middle, and posterior columns consistent with the history of Chance fracture. This is associated with significant superior endplate compression deformity, with approximately 50% loss of vertebral body height anteriorly. There is mild retropulsion of approximately 3-4 mm encroaching the anterior CSF space. Adjacent to this, there is a small focus of T2 hyperintensity within the conus. There is also splaying of the T11 and T12 spinous processes with significant interspinous and supraspinous ligamentous injury. There is also overlying soft tissue injury.3.No MRI evident ligamentous injury of the cervical or lumbar spine.