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Carcinogenicity and metallic implants

J W Vahey1, P T Simonian, E U Conrad

  • 1Department of Orthopaedic Surgery, University of Washington Medical School, Seattle, USA.

American Journal of Orthopedics (Belle Mead, N.J.)
|April 1, 1995
PubMed
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Metallic implants may pose a carcinogenic risk, with studies showing increased lymphomas and hematopoietic tumors after total hip arthroplasties. Further research into implant toxicity and patient response is crucial for orthopedic surgeons.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Oncology

Background:

  • The carcinogenic potential of metallic implants is a significant concern in orthopedic surgery.
  • Literature review identified 20 cases of tumors near metallic implants over 34 years.
  • A 70% increased incidence of lymphomas and hematopoietic tumors observed in total hip arthroplasty patients.

Purpose of the Study:

  • To review existing literature on the carcinogenic potential of metallic implants.
  • To summarize reported cases and investigate potential mechanisms of metallic carcinogenesis.
  • To inform orthopedic surgeons about this controversial issue.

Main Methods:

  • Comprehensive literature review of scientific publications.
  • Analysis of case reports detailing tumors in proximity to metallic implants.

Related Experiment Videos

  • Examination of proposed theories for metallic implant-associated carcinogenesis.

    • Main Results:

    • Twenty cases of tumors near metallic implants were documented over a 34-year period.
    • Elevated risk of lymphomas and hematopoietic tumors in patients with total hip arthroplasties.
    • Multiple etiological theories proposed, including material toxicity, corrosion, and immune response.

    Conclusions:

    • Metallic implants present a potential, albeit controversial, risk for carcinogenesis.
    • Corrosion products and material properties are key factors in implant toxicity.
    • Understanding these risks is vital for orthopedic surgeons managing patients with metallic implants.