Charley develops Low Friction Arthroplasty. Main problems: cement cracks over time and breaks into pieces resulting in loosening, body reacts to pieces and attempts to remove them which also removes bone.
Invented by Sir John Charnley in England.
Revolutionary features: combination of metal gliding on plastic and also the use of methacrylate cement to attach the artificial components of the bone.
First Preformed THR in USA
Approach from the front of the body with noncemented, porous-coated cups which yielded long term excellent results.
AML Cementless Implant Invented
This was created in response to the problems of earlier models.