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Related Experiment Videos

Total hip joint replacement using a CoCrMo metal-metal sliding pairing

B G Weber1, M F Semlitsch, R M Streicher

  • 1Orthopädie am Rosenberg, St. Gallen/Heiden, Switzerland.

Nihon Seikeigeka Gakkai Zasshi
|May 1, 1993
PubMed
Summary

Metal-metal hip implants show long-term success, unlike polyethylene components which cause loosening. This study presents a new metal-metal hip joint design, highlighting the superiority of metal-metal pairing for durable total hip replacement.

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Total Hip Joint Replacement Using a CoCrMo Metal-Metal-Sliding Pairing.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Biomedical Engineering

Background:

  • Late loosening in total hip replacement is often caused by polyethylene wear debris triggering a foreign body reaction.
  • Older metal-metal prostheses (McKee type) demonstrate excellent longevity without osteolysis, suggesting material superiority.
  • Cement fixation can provide adequate long-term stability in hip implants.

Purpose of the Study:

  • To evaluate the long-term performance of metal-metal total hip prostheses.
  • To compare the efficacy of metal-metal articulation versus polyethylene in total hip replacement.
  • To introduce and assess a novel metal-metal hip joint design.

Main Methods:

  • Review of clinical outcomes for McKee-type metal-metal hip prostheses.

Related Experiment Videos

  • Presentation and implantation data of a new metal-metal total hip joint design.
  • Analysis of bone-implant interface and osteolysis signs.

    • Main Results:

    • Metal-metal prostheses, even from the 1960s, can function without loosening or osteolysis.
    • Metal-metal pairing demonstrates superior performance compared to polyethylene components in total hip replacement.
    • The new metal-metal hip joint has been implanted 90 times between 1988 and 1991 with promising initial results.

    Conclusions:

    • Metal-metal articulation is a superior bearing surface for total hip replacement, reducing wear-related complications.
    • Cemented fixation remains a viable and adequate method for achieving stable total hip arthroplasty.
    • The novel metal-metal hip joint design warrants further investigation for long-term efficacy.