Science continues to make amazing strides in technology creation and application.  Note this latest one.

https://www.sciencedaily.com/releases/2018/02/180209170717.htm

Also, this arm seems to be almost cyberpunk-ready.

The force is strong: Amputee controls individual prosthetic fingers — ScienceDaily

These incremental steps are bringing us closer to mechanically replaceable limbs, and perhaps even a nervous system, which would be a way around diseases such as Parkinson’s or multiple sclerosis, or Lou Gehrig’s disease.