Neurologic complications of craniovertebral dislocation

Area of Science:

• Neurology
• Orthopedic Surgery
• Radiology

Background:

• Craniovertebral dislocation is an uncommon condition with potentially severe neurologic consequences.
• Associated conditions include Down syndrome, rheumatoid arthritis, Paget's disease, metabolic bone disorders, and trauma.
• Atlanto-occipital and C2 vertebrae are frequently affected in cervical spine injuries.

Purpose of the Study:

• To highlight the importance of diagnosing craniovertebral dislocation.
• To outline the clinical presentation and common etiologies.
• To emphasize the role of neuroimaging and treatment modalities.

Main Methods:

• Review of clinical presentations and known causes of craniovertebral dislocation.
• Analysis of the prevalence of craniovertebral involvement in specific conditions like Down syndrome, rheumatoid arthritis, and Paget's disease.
• Discussion of neuroimaging techniques for diagnosis and severity assessment.

Main Results:

• Craniovertebral subluxation occurs in a small percentage of Down syndrome patients.
• Up to 40% of severe rheumatoid arthritis cases and 30% of Paget's disease cases involve the craniovertebral region.
• Neurologic symptoms include pain, spinal cord compression, Lhermitte phenomenon, syncope, vertebral artery issues, and cranial nerve palsies.

Conclusions:

• Early diagnosis of craniovertebral dislocation is critical for managing neurologic complications.
• Neuroimaging is essential for diagnosis and grading severity.
• Treatment typically involves surgery, with traction, immobilization, and condition-specific therapies as adjuncts.