Quantitative preoperative craniovertebral junction anatomy in Chiari I malformation: a comparative MRI study.
BACKGROUND Chiari I malformation (CM-I) is characterized by caudal displacement of the cerebellar tonsils through the foramen magnum. Craniovertebral junction (CVJ) anatomical variations may contribute to disease pathophysiology. This study is the first of a six-article institutional series investigating the anatomical...