A DEVICE AND METHOD FOR ACHIEVING ACCURATE POSITIONING OF ACETABULAR CUP DURING TOTAL HIP REPLACEMENT

摘要

A method and apparatus are provided for positioning an acetabular cup in a desired alignment in relation to a patient's hemipelvis. Using a patient-specific jig as a guide, bone is removed or displaced from the patient's hemipelvis to form a hole corresponding to a desired axis of alignment, and the acetabular cup is positioned in the desired alignment with the aid of a pin or post inserted into the hole. The hole may be located within the patient's acetabulum, and the pin or post may be affixed to the acetabular cup. To allow for positioning of the acetabular cup, the patient's acetabulum may be reamed, again with the aid of a pin or post inserted into the hole. The pin or post may be affixed to a reaming tool used for this purpose.