ARTech silicone prostheses are also functional. They can improve the gait and posture, ease lower back pain, relieve pressure on bone spurs and other sensitive areas, protect the tissue from further injury, improve the operation of myoelectric hands, etc. In allowing use of an injured limb that the amputee considers too repulsive to expose and use, the prosthesis may well improve overall function. When a restoration has a natural appearance, sculpted and painted to match the opposite limb, as opposed to the robotic or mannequin look of traditional prostheses, utilization by the patient is maximized. This enhanced usability may well be one of the most important functions of all.