The Complex Chiari
Other features reported in Complex Chiari are:
- Retroflexed Odontoid/Medullary Kink
- Abnormal Clivoaxial angle
The literature currently supports that additional treatment beyond the standard Chiari Decompression Surgery is required. This may include occipital-cervical fusion and/or transoral odontoidectomy.
See our page for craniocervical instability. However, this is still controversial with no consensus between doctors.
However, this presentation of a chiari type is still fairly new and still gaining support worldwide. Some doctors believe that with the improvements in MRI's that this is not a new type of chiari, but just an expected variation of Chiari Type 1.
Doug Brockmeyer Neurol Sci 32 (S345-347) 2011
Robert Bollo J NSGY Ped 10(2): 134-141, 2012