share email twitter ⋅ join discord whatsapp(2ck)
free120  nbme24  nbme23  nbme22  nbme21  nbme20  nbme19  nbme18  nbme17  nbme16  nbme15  nbme13 

NBME 18 Answers

nbme18/Block 1/Question#15 (8.1 difficulty score)
A 34-year-old man has a herniated lumbar ...
D (Lamina)πŸ”
tags:

Login to comment/vote.


 +0 
submitted by azibird(159),

A laminectomy removes the lamina and spinous process. The lamina is the posterior bridging segment (D). The lateral bridging segment is the pedicle (B).

However, I don't understand how you could access the herniated disc from this angle, the spinal cord would be in the way! Can someone explain?

https://www.mayoclinic.org/tests-procedures/laminectomy/about/pac-20394533

scrambledeggs  Take a look at the section labeled Laminotomy and Discectomy. https://eorthopod.com/lumbar-discectomy/ +3  
coby219  "Intervertebral disc (nucleus pulposus) herniates posterolaterally through annulus fibrosus (outer ring) into central canal due to thin posterior longitudinal ligament and thicker anterior longitudinal ligament along midline of vertebral bodies. Nerve affected is usually below the level of herniation." - first aid 19 p455 +2