Indirect bone fastening assembly for hip or other joint prosthesis - has ball-and-socket joint components independent of bone configuration, with intermediate supports attached to or implanted in bone surfaces

摘要

The components of the joint prosthesis are sealed to support members independent of the body portions which they replace. The components include a hollow acetabulum cup (2) which is secured to a support plate (1) of inert material, which may be bio-absorbable or not, and which is grafted into a bone surface. The cup receives the spherical head (3) of a femoral component having a tail-type support component (6) similarly grafted into a bone portion. Different configurations of support component are provided for alternative femoral implantation procedures. ADVANTAGE - Standardised joint components, with reduced operating time resulting from greater range of flexibility of bone attachment.