Reconstruction of anterior cruciate ligaments

Abstract

Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.

What is claimed is: 
     
         1 . A method of locating an attachment position for a reconstructed anterior cruciate ligament (ACL) at a lateral condyle of a femur comprising:
 passing a tip of a locating instrument at least partially through an intercondylar notch of a femur by moving the locating instrument distally and laterally relative to the femur;   moving the locating instrument to bring the tip of the locating instrument into contact with a back surface of the lateral condyle;   contacting a first surface of a side piece of the locating instrument against a side wall of the lateral condyle; and   contacting a second surface of the side piece of the locating instrument against a roof of the intercondylar notch at the same time the first surface is contacting the side wall of lateral condyle and the tip of the locating instrument is contacting the back surface of the lateral condyle to locate the instrument relative to the femur.