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Choosing a Total Hip Prosthesis

The choice of prosthesis depends on: 

  1. the prosthesis

  2. the instrumentation

  3. the surgical expertise & experience

The Prosthesis

1. Acetabulum:

  • the aim of the acetabular component is to orientate the THR as close to the anatomical axis of rotation as possible.

  • The Ogee cup has proved to be the most reliable

  • cement on the socket does very well for about a decade. Then, increasingly, there's more loosening and higher incidence of re-operation. (Harris)

  • Uncemented designs: HAC threaded cups have proved better than oversized press-fit & screw fixed cups.

2. Femoral Component:

  • Cemented femoral stems have proved more reliable than uncemented.

3. Surgical Expertise:

  • A number of studies, including hip registers (Swedish, Trent, Norwegian) have shown that the experience of the surgeon correlates with less complications.




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