What does facet orientation have to do with spinal movement?

[@walls300]

I always enjoy videos like these. Unfortunately, you have the cervical vertebrae oriented incorrectly; they should be oriented oblique (about 45 degree angle) facing slightly posterior, superior, and medially (not laterally). The old addage B.U.M. (backwards, upwards, medial) should help here.

[@alliedanatomy6462]

Hi Mike, thanks for the comment. Actually that's a great point to mention. It's also common for the upper subaxial spine to be slightly medially facing, although this transitions to lateral in the lower C spine. For sake of simplicity in this video i did not mention this transition.

[@gabrielerselbst1200]

This really helped me a lot, thank you :)

[@alliedanatomy6462]

Your welcome! Good to hear

[@deepikaaggarwal5124]

Thank you so so much ☺️☺️☺️I was stuck in the thing for 2 hours that how facet orientation is affecting movements in spine.. Thanks a ton!! ❤️ Looking forward to learn more from you ☺️

[@alliedanatomy6462]

Fantastic to hear! I am glad this could help you :)

[@jjfitnesselevation3352]

Clear and concise! Thanks!!

[@alliedanatomy6462]

Glad it was helpful!

[@GR-zo6sm]

Great video! Just what I was after. Thanks mate :)

[@alliedanatomy6462]

No problem 👍

[@GalidorDragon]

If there is a fusion on l5 S1, what is the movement restriction?

[@alliedanatomy6462]

Hi. This depends on where the fusion is, what joints are involved, and how progressed it is. Generally speaking there is not much available movement between L5 and S1 (less than ~4 degrees), so restriction may not be noticed at all! If it is noticed then it may be most likely noticed at end of range spinal flexion.

[@GalidorDragon]

@@alliedanatomy6462 thank you! I'm having the fusion done soon and was concerned of loss of range of motion, but didn't know how much those joints would be affected.

[@alfiecharles9745]

Thank you! I’ve been stuck on this section of my pt course. Could you tell me which section of the spine is where the facets are orientated in the transverse plane? Thanks

[@alliedanatomy6462]

Glad I could help. No section of the spine is in the TV, although the closet is the cervical.

[@shubhashreeghadai9875]

Thank you so much

[@alliedanatomy6462]

You are welcome!

[@luyzqint3760]

Can you please explain what is the function and movement of the T1?. I'm trying to fix an issue there. Thank you ✌️

[@alliedanatomy6462]

Hi Luyz, T1 is the first thoracic vertebra. It is where the right and left first rib articulates. It moves similarly to most of the other thoracic vertebra, although because it is the smallest of all thoracic vertebrae then it is most mobile. What issue are you trying to fix there?

[@luyzqint3760]

@@alliedanatomy6462 Something is out of place somewhere in the T1/T2/first rib, that provokes my C1 to be misaligned and get horrible neurological symptoms, not to mention the discomfort. I had (probably still have to a smaller degree) a mild scoliosis between T1 and T4. In my last x-rays showed that it is straight but the issue continues, just not as bad. Thank you for your reply.✌️

[@jaggztech]

This is beautiful. Thank you. I noticed you did not seem to actually show an attempt at Lumbar lateral flexion though. It would be great to also try to demonstrate even the slight axial rotations that might occur in the vertebra during lateral flexions as well, even if the skeleton won't do it on its own and you must demonstrate by grabbing a facet or two while demonstrating the flexion. Thanks so much for your contribution to humanity.

[@DafengChen]

sur-vi-kuhl

[@alliedanatomy6462]

Spot on!