Fig. 5.

Right transhumeral amputation following targeted muscle reinnervation and osseointegration with the Osseoanchored Prosthesis for the Rehabilitation of Amputees (OPRA) device (Integrum, Sweden). a The abutment penetrates through the skin at the end of the residual limb and is secured to the fixture (intramedullary component) with an abutment screw. b The myoelectric prosthesis attaches to the abutment with a connection device (white ring). In the absence of a socket, the electrodes sensing muscle contraction and controlling the device are contained within the soft arm strap. Images courtesy of the Department of Defense Osseointegration Program