Patent ID: 9713539
Date: 2017-07-25
CPC Classifications: A61B,A61F

Claim:
1. A computer-implemented medical method for planning an optimized positioning of a hip joint prosthesis, wherein the prosthesis includes a stem and a cup, the method employing a navigation system and a computer and comprising: acquiring, by the navigation system, a geometric shape of an associated patient's acetabulum; receiving, at the computer, the geometric shape of the acetabulum, and a geometric shape of the cup which is to be placed; predefining, by the computer, at least one target area on the surface of the cup where the cup has to abut bony structure of the acetabulum in order for the cup to be sufficiently fixed within the acetabulum; determining, by the computer based on the geometric shape of the acetabulum and the geometric shape of the cup, at least one actual area of the cup which will abut the bony structure of the acetabulum when the cup is placed; defining, by the computer, defined requirements comprising at least one requirement for a position and/or an orientation of the cup on the basis of a position and/or a size of the at least one target area and the at least one actual area; calculating, by the computer, at least one of an optimum position of the cup or an optimum orientation of the cup on the basis of all the defined requirements being fulfilled; and displaying the optimum position and/or the optimum orientation of the cup to an associated surgeon in a surgical or pre-surgical environment, thereby enabling placement of the cup.