The apparatus of the present invention includes a number of components including a guide body component, an extension block component, a rotating arm component, an extension rod component, and a tibial referencing component. The guide body component contacts the distal-most surface of the femur. Its...http://www.google.es/patents/US5597379?utm_source=gb-gplus-sharePatente US5597379 - Method and apparatus for femoral resection alignment
Method and apparatus for femoral resection alignment