1. A unconstrained replacement elbow joint with replaceable articular parts, containing: the body of the joint with cupped intramedullary nail attach points for permanent attachment very little bone cement is needed; intramedullary nail attach points with pimples on them like a golf ball that allow bone granulation to make attachment permanent; unconstrained articular surfaces which move freely through the joints range of motion; the distal portion of the prosthetic contains a spring steel piece that fits in the trochlear notch for smoother joint movement;

The distal portion of the joint is in two parts that rotate around a bushing in the middle for better range of motion; articulating surfaces designed to break under severe load so that there is no breaking or cracking of the bone at the intramedullary nail attach points; articulating surfaces that attach to the body of the joint on two rails, with stop guides that are molded on both sides of the upper and lower

prosthetic; the part is secured by two set screws on each side of the joint in holes that are provided in the permanently attached part of the joint; the stop guides in the track let the surgeon know that the new articular portion is seated properly; articulating surfaces attached to the rails by sunken head set screws;

2. A unconstrained elbow joint with replaceable articular parts according to claim 1, where the unconstrained joint with articular surfaces that break under extreme load; replaces a patient’s original joint with a prosthetic joint that contains replacement articular sqrfaces; replacement articular surfaces have the benefits of a less invasive, quicker surgery and less time for the patient in PT ;

Replacement articular surfaces are also a benefit for replacement when the surfaces get worn;