If you want nightmare material, there was a post-WWI procedure which repurposed the radius and ulna to provide manipulators for hand amputees. It was apparentl

If you want nightmare material, there was a post-WWI procedure which repurposed the radius and ulna to provide manipulators for hand amputees. It was apparently highly effective from a medical and patient-independence-QoL point of view, but ultimately not accepted on aesthetic grounds...