Patent ID: 6991655

Claim:
A method for computer assisted insertion of an artificial hip joint prosthesis comprising: making the anatomy of a hip available for insertion of parts of said prosthesis, wherein said parts of said prosthesis comprise a prosthesis stem and a cup; preparing for insertion of said parts of said prosthesis; inserting temporarily said prosthesis stem into a femur; inserting temporarily said cup into a pelvis; inserting a positioning tool between said prosthesis stem and said cup, said positioning tool configured to control an angle between said parts of the prosthesis; assembling the artificial hip joint; stretching said hip and a knee associated with said hip; placing a foot associated with said hip and said knee in a position configured with the toes pointing forward relative to a body associated with said foot; measuring the position of said parts of the prosthesis with a position determination instrument; luxating the hip joint; removing said parts of the prosthesis from said femur and said pelvis; inserting said cup into said pelvis into a predetermined position, said predetermined position being equal to a position measured by said position determination instrument; controlling said insertion of said cup with said position determination instrument; fixing said cup into said predetermined position; fixing said prosthesis stem to said femur; and reassembling said hip joint.