The solution is based on the fact, that on the surface of the acetabulum (3) there is a self-drilling thread, containing at least three independent teeth (41, 42 and 43) which advantageously have a concave shape of the cutting edge and a truncated pike, whereas the planes of their upper edges lie on...http://www.google.ca/patents/US6652590?utm_source=gb-gplus-sharePatent US6652590 - Cementless total replacement of the human hip joint
