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Related Experiment Videos

[Ceramic acetabulum cup inserts for hip endoprostheses]

G Willmann1, H Kälberer, H G Pfaff

  • 1CERASIV, Produktbereich Medizintechnik, Plochingen.

Biomedizinische Technik. Biomedical Engineering
|April 1, 1996
PubMed
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Ceramic hip implants using alumina (Biolox) show very low wear rates, reducing osteolysis or polyethylene disease. This advancement offers a solution for total hip replacement revision surgery.

Area of Science:

  • Biomaterials Science
  • Orthopedic Surgery
  • Medical Device Engineering

Background:

  • Polyethylene wear in total hip prostheses causes osteolysis, often necessitating revision surgery.
  • Despite advancements, minimizing polyethylene wear and associated complications remains a challenge in hip replacement.
  • Osteolysis, or polyethylene disease, is a significant concern in long-term hip implant survival.

Purpose of the Study:

  • To evaluate the efficacy of ceramic (Biolox alumina) components in reducing wear and osteolysis in total hip replacements.
  • To discuss the development of modern modular ceramic acetabular cup inserts.
  • To propose a fixation concept for ceramic acetabular cup inserts considering surgical and manufacturing factors.

Main Methods:

  • Review of clinical experience with Biolox alumina femoral heads and acetabular cups over 20 years.

Related Experiment Videos

  • Analysis of histological studies on the tolerability of ceramic materials.
  • Discussion of manufacturing constraints and surgeon needs for ceramic acetabular cup inserts.

    • Main Results:

    • Biolox alumina components demonstrate very low wear rates in clinical use.
    • Histological studies confirm good tolerability of alumina materials.
    • The taper fixation concept is suitable for modular ceramic acetabular cup inserts.

    Conclusions:

    • Ceramic (Biolox alumina) hip implants significantly reduce wear and the incidence of osteolysis.
    • Modern modular ceramic acetabular cup inserts are feasible with appropriate design and fixation.
    • A proposed fixation concept addresses surgical and manufacturing requirements for ceramic inserts.