An unfinished functional replacement for an amputated limb, fitted and aligned in accordance with sound biomechanical principles which is worn for a limited period of time to accelerate the rehabilitation process. It is generally without cosmetic finishing and is used to expedite prosthetic wear and use; it also aids in the evaluation of amputee adjustment and component selection.

a short-term prosthesis, generally without cosmetic finishing, which is provided in the early phase of fitting to expedite prosthetic wear and use; it also aids in the evaluation of amputee adjustment and component selection.

A temporary prosthesis worn for approximately 3-12 months. This temporary prosthesis is used to evaluate a child's functional need for a permanent or definitive prosthesis.

A device that allows for extensive gait training for lower limb amputees and extensive functional training for upper limb amputees. It is intended as the final step before the definitive application. A patient with a preparatory prosthesis need not necessarily be in the hospital, but is still undergoing changes to the residual limb that will preclude the fitting of the definitive prosthesis.

An artificial limb that is designed, fabricated and fitted soon after surgery; the prosthesis is worn as the residual limb is healing.