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Updated: Jul 7, 2026
05:53
Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
High cervical C3-4 'disc' compression associated with basilar invagination
1Department of Neurosurgery, King Edward Memorial Hospital and Seth G.S. Medical College, Parel, Mumbai, India. atulgoel62@hotmail.com
Neurology India
|March 4, 2008
Summary
This case study highlights that C3-4 disc changes may result from primary instability in the craniovertebral junction, not direct compression. Surgical correction of basilar invagination and atlantoaxial dislocation led to significant patient recovery.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Spinal Cord Medicine
Background:
- Congenital torticollis and short neck can be associated with craniovertebral junction abnormalities.
- Progressive quadriparesis in young adults necessitates investigation into spinal cord compression.
- Basilar invagination and atlantoaxial dislocation are complex conditions affecting the craniocervical region.
Observation:
- A 20-year-old male presented with progressive quadriparesis, diagnosed with basilar invagination and C3-4 osteophytes.
- Serial MRI revealed persistent signal changes at C3-4 suggestive of cord compression, despite no clear radiological compromise.
- Intraoperative findings indicated instability solely at the craniovertebral junction, not at C3-4.
Findings:
- Surgical reduction of basilar invagination and atlantoaxial dislocation via distraction and fixation of the atlas and axis.
- Significant clinical recovery was observed post-operatively.
- No direct decompression at the C3-4 level was performed, yet neurological improvement occurred.
Implications:
- Craniovertebral junction instability can be the primary cause of apparent C3-4 disc pathology and cord compression.
- Effective management of basilar invagination and atlantoaxial dislocation can resolve secondary spinal cord symptoms.
- This case underscores the importance of evaluating the entire craniovertebral region for instability in complex cervical pathologies.
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