4.0 of 39 Ratings
A 63-year-old male presents to your clinic with a 6-month history of progressive loss of manual dexterity of his fingers and loss of balance. His cervical spine MRI is shown in Figure A. Which of the structures labeled in Figure B is the tectorial membrane?
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A 43-year-old female undergoes posterior occipitocervical fusion due to significant instability secondary to Rheumatoid Arthritis. During placement of screws in C1 the drill penetrates through the anterior cortex, which places what structure at the greatest risk of injury?
Internal carotid artery
Anterior spinal artery
Posterior spinal artery
A 27-year-old female with Down's presents with neck pain, progressive gait instability, and loss of fine motor dexterity in her hands. Flexion and extension radiographs are shown in Figure A and B and demonstrate occipitocervical instability. When performing an occipitocervical fusion, what location in Figure C is most appropriate for placement of an 8mm unicortical screw?