?:definition
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Implantable metal or metal- and polymeric-prostheses designed for total or partial replacement of the elbow joint. Partial elbow prostheses may be either a humeral component (consisting of a long stem that is anchored in the hollow center of the humerus at one end and a hinge with a bearing and pin at the articulation point) or an ulnar component (consisting of a shorter stem that is anchored in the hollow center of the ulna and fits in the humeral component hinge at the articulation point). The prosthesis components can be anchored in the bone using orthopedic cement (e.g., epoxy) or integrated into the bone using mesh. Total elbow joint prostheses typically include humeral and ulnar components and may also include a radial component. Elbow joint prostheses are used in patients who suffer from osteoarthritis or rheumatoid arthritis, as well as after trauma (e.g., fracture).
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