Prosthesis For Simulating Natural Kinematics

摘要

A bearing component 2 for a joint replacement prosthesis comprises a first bearing element 4; a second bearing element 6, and a linking element 8, operatively connecting the first and second bearing elements 4, 6 and permitting relative motion there between. The flexible linking element 8 prevents dislocation of mobile bearings in a total knee replacement prosthesis. The invention also relates to a bridging element which retains the linking element 8 with some play, which acts as a ligament support 2051, and which causes a deflection of the line of action of a ligament 1018. ;A joint replacement prosthesis is also disclosed comprising a biasing element 1140 or a tensioning element 1220 operatively coupled to the artificial ligament 1018. The biasing element 1140 or tensioning element 1220 may be housed in the stem of a tibia tray 1006.

主权项

1. A method of implanting a prosthesis having first and second bone engaging elements, an artificial ligament and an adjustable tensioning element operatively coupled to a first end of the artificial ligament and to the first bone engaging element, the method comprising:
assembling the first bone engaging element, adjustable tensioning element and artificial ligament; implanting the first and second bone engaging elements into bone tissue; connecting a second end of the artificial ligament to the second bone engaging element; and adjusting the position of the adjustable tensioning element until a predetermined tension within the artificial ligament is ached.