Mechno-arm

Mechno-arms were cybernetic arms meant to replace lost organic arms and hands. This way, the host would not be impaired by the lack of a limb, and could continue to perform the same functions, benefitting from the fact that the mechno-limbs were much stronger than the original organic members. Mechno-arms used an electrostatic fingertip system in order to allow users to retain their sense of touch. They could also be covered with synthetic skin for a more lifelike appearance.

After Count Dooku cut off the arm of Anakin Skywalker during the First Battle of Geonosis, he had a mechno-arm grafted to what remained. Luke Skywalker had one (covered over in synthetic skin so it would look like more realistic) grafted to his wrist after Darth Vader severed his hand during the Duel on Cloud City. However, by 34 ABY, this synthetic skin had been removed, exposing the cybernetic extremity underneath.

Text and facts from the “Mechno-arm” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.