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Old 05-06-2011
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Anatomy Spinous ligaments

Can someone please explain this:
If the lumbar discs herniate into the spinal canal causing spine tenderness and foot drop, which ligament is pushed into the spinal nerve roots?

Also, please explain these ligaments:
anterior longitudinal ligament
posterior longitudinal ligament
cruciform ligament
interspinous ligament
supraspinous ligament
ligamentum flavum
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Old 05-06-2011
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I guess it would be the posterior longitudinal ligament.

Ant longitudinal ligament is present anteriorly to the body of the vertebra, and post longitudinal ligament is present posterior to the body of the vertebra. Interspinous ligament is present between the tips of the spines of adjacent verterbrae. And the supraspinous ligaments are present between the spines of adjacent vertebrae (but not on their tips, because interspinous ligament is present there). Ligamentum flavum connects the laminae of the adjacent vertebrae. Cruciform ligament is a cross shaped ligament in the neck. The cross is formed by the transverse ligament of atlas and longitudinal fibers from above and below.

It may be a good idea to look at this picture while reading to make your concept:

http://www.wikidoc.org/images/thumb/...px-Gray307.png (Cruciform ligament)

http://static.spineuniverse.com/disp...gaments-BB.jpg (All other ligaments)

Hope this helps...

Last edited by asfand; 05-06-2011 at 09:48 PM. Reason: Spelling mistake
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Old 05-06-2011
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Awesome, thank you!
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Old 05-07-2011
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Very helpful..Thanks!
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Old 05-07-2011
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Quote:
Originally Posted by heights View Post
Awesome, thank you!
Yes, I also think it would be the posterior ligament. Also remember that majority of disc herniations are ANTERIOR dislocations, so disc slides forwards..
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Old 05-07-2011
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That's because the ant longitudinal lig is weaker, right?

I never thought about it before, wouldn't that mean that there shouldn't be any nerve compression in the majority of the dsc herniations?
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