Patient-specific orthopedic instruments

摘要

A method of preparing a distal femur for a knee joint implant includes mounting a patient-specific bone engagement surface of a femoral alignment guide on a complementary surface of a distal femur of a patient. A plurality of alignment pins is inserted through a corresponding plurality of guiding bores of the femoral alignment guide into the distal femur. A cutting guide is mounted on first and second alignment pins of the plurality of alignment pins, and a first resection of the distal femur is made using the cutting guide while cutting through the femoral alignment guide.

主权项

1. A method of preparing a distal femur for a knee joint implant, the method comprising:
mounting a patient-specific bone engagement surface of a femoral alignment guide on a complementary surface of a distal femur of a patient; inserting first and second anterior alignment pins into an anterior surface of the distal femur through corresponding first and second anterior guiding bores of the femoral alignment guide, wherein the first and second anterior alignment pins are resorbable; inserting first and second distal alignment pins into a distal surface of the distal femur through corresponding first and second distal guiding bores of the femoral alignment guide, wherein the first and second distal alignment pins are resorbable; supporting a distal cutting guide on the first and second anterior alignment pins; passing a cutting blade through a cutting slot of the cutting guide; and resecting the distal femur with the cutting blade by cutting through the alignment guide and the first and second distal alignment pins to form a resected distal surface.