There seem to be two main solutions for serious neck & back issues
1) fusion. They fuse, use bone etc to connect & plates, screws so that until fusion happens fusing bones are in place.
+ stability + less future damage to nerves - loss of mobility increase the chance of adjacent segment problem - intrumentations & other causing swallowing issues
2) ADR: the Arificial Discs are put in a way that no other significant intruments are needed.
+mobily + stability + prevent future nerve damage - more metals may cause complexities - sometimes bone growth cause them to be fused.
Fusion has been around probably 40+ years. ADR probably 20+ (may be more). Why not thinking about new solutions to use less metal but still keep mobiliy.
1) Core of the ADR need to be made of metal if the whole disc is made of bone type of material they may fuse. How about making most of the ADR with bone type of material except where two parts needs to slide on each other?
2) If cloning can make an exact copy of another animal, why cannot it clone just a disc and use the clone disc to replace the worn disc
3) Any other material that might keep on level collapsing into other but still keep them rotating?
I guess I am day dreaming!
MRI shows C4-C7 severe steonosis. Pain in hand.