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Abstract motion to a joint and function to the muscles, ligaments and soft tissue structures that control the joint. The recorded logical efforts were carried out in the hope of avoiding amputation of a limb for incurable joint infection by resection of affected bone in the sixteenth century and this type of surgery was the birth of all future reconstructive surgery. Elbow arthroplasty can be divided into three types: (1) Resection arthroplasty with or without interposition. (2) Destraction arthroplasty, and (3)replacement arthroplasty. Understanding of mechanical principles in relation to functional anatomy and appreciation of elegant inter- reactions of form and function are necessary for undertaking repair and reconstruction of the elbow. In recent years the design of prosthetic implants has been improved because of better understanding of axis of motion, stabilizing factors, load distribution and forces about the elbow joint. Also these factors can explain the causes of loosening of the implant and other biomechanical complications like instability, dislocation and fracture of the component. |