I want to animate a tendon transfer surgery in blender. I want the tendon to follow the surface of the bone while it is pulled out at the incision area. 

**It should look like a shoelace being pulled out of a shoe**: 
The shoelace should be able to deform but follow the hole it is pulled through

Many thanks in advance!

[![Shoestring being pulled from out of the shoe](https://i.stack.imgur.com/CWiTl.jpg)](https://i.stack.imgur.com/CWiTl.jpg)