Revision hip implants and prosthesis systems

A method of performing a revision surgery comprising:

• introducing an acetabular cup into a patient, the acetabular cup comprising a cup portion and a peripheral portion, the acetabular cup having a first surface configured to interface with the pelvic bone of the patient, the acetabular cup having a second surface facing away from the pelvic bone of the patient, at least a part of the second surface facing a femoral component of a hip implant, the acetabular cup including a plurality of screw holes extending from the first surface to the second surface, the screw holes having a first diameter at the first surface and a second diameter at the second surface, the second diameter being greater than the first diameter, the plurality of screw holes having threaded inner surfaces;
• introducing a first screw through one of the plurality of screw holes and into the pelvic bone of the patient, the first screw comprising a shaft and a head, the head of the first screw being devoid of threads;
• driving the first screw into the pelvic bone until the head of the first screw captures the acetabular cup to the pelvic bone;
• introducing a second screw through one of the plurality of screw holes and into the pelvic bone of the patient, the second screw comprising a shaft and a head, the shaft of the second screw having a third diameter smaller than the first diameter of the screw hole, the head of the second screw having a fourth diameter larger than the first diameter of the screw hole, the shaft of the second screw having threads configured to engage the pelvic bone structure, the head of the second screw having threads formed therein and configured to engage the threaded inner surfaces of the screws holes in the acetabular cup;
• and
• driving the second screw into the pelvic bone until the threads on the head of the second screw engage the threaded inner surface within one of the screw holes in the acetabular cup such that the cup is further secured onto the pelvic bone.

A method of performing a revision surgery, comprising:

• introducing a modular segmental prosthesis into a patient, the prosthesis comprising an inner surface and an outer surface, the inner surface configured to interface with a pelvic bone of the patient, the outer surface facing away from the pelvic bone of the patient, a side of the prosthesis extending between the inner and outer surfaces, the side forming a cement fixation area configured to interface with an acetabular cup, the system including a plurality of screw holes formed from the outer surface to the inner surface, the screw holes having a first diameter at the inner surface and a second diameter at the outer surface, the second diameter being greater than the first diameter, the plurality of screw holes having threaded inner surfaces;
• and
• introducing a first screw having a shaft and a head, the shaft of the first screw having a third diameter less than the first diameter of the screw hole, the head of the first screw having a fourth diameter greater than the first diameter of the screw hole, the shaft of the first screw having threads configured to engage the pelvic bone structure, the head of the first screw having threads formed thereon and configured to engage the threaded inner surfaces of the screws holes;
• and
• driving one of the screws into the pelvic bone until the threads on the head engage the threaded inner surface of one of the screw holes such that the prosthesis is secured onto the pelvic bone.