Occipitocervical fusion as treatment of instability in Chiari malformation

Introduction. Occipitocervical (OC) fusion is a method for fixation of the OC junction when there instability that segment. Arnold Chiari malformation congenital disorder where cerebellar tonsils descend through foramen magnum, which can lead to corticomedullar compression and formation syrinx. While treating this condition, purpose decompression, magnum expanded, potentially harm stability junction. Case outline. We are presenting case 16-year-old female who was surgically treated (suboccipital craniectomy decompression) because type I. One-year post-op multislice computed tomography verified slight enlargement basion-axial basion-dens intervals, with signs spinal cord compression. Surgery performed ? fusion, canal decompression on C1 C2 levels plate occipital bone screws placed in third, fourth, fifth cervical vertebra. Conclusion. complex surgical procedure (vital neurovascular structures), but it reliable treatment