Help to select interaction!

[OscarPacheco]

Good morning to all of you. Please can you suggest me an interaction to simulate the movement in the video?
I am trying to do the same and I am using Tie but it doesn't cause the same effect as the intervertebral disc deforms a lot in some places but not in others (see the attached image for an extension moment where the superior vertebra has been removed in the photo)

Thank you very much for your help!

https://www.youtube.com/watch?v=Wd5fV69Uslk

 

[Mustaine3]

Check your regions (Master & Slave) that are used in the Tie and also check the value of the position tolerance.