Skip to main content
Start of main content

Metal-on-Metal Hip Implants – Risk Assessment for Systemic Health Effects

Using biokinetic modeling to assess cobalt risk in patients

  • San Francisco, California

    San Francisco, California

Developing a better understanding and characterizing threshold health effects

Several lawsuits claiming adverse health effects from metal-on-metal hip implants have been filed across the United States. To improve our understanding of the effects of hip implants on patients needing the procedure, we conducted studies and risk assessments.

Our ChemRisk team developed a biokinetic model for cobalt, one of the constituents released from the alloy used to manufacture these implants—and defined a reference dose and corresponding blood levels that were considered safe. We then confirmed our findings by conducting 14-, 30-, and 90-day cobalt dosing studies in humans. In addition, we conducted similar risk assessments involving health effects from chromium(III), another metal released from the hip implant alloy, as well as genotoxic and carcinogenic effects from the implantation of these devices. We performed an advanced toxicology and risk assessment for nanoparticles released from implants.

The health sciences community has used our findings to better understand and characterize threshold health effects associated with metal released from metal-on-metal hip implants.

At a Glance

Meet Our Team

Michael Kovochich, Principal Senior Advisor

I love solving complex scientific questions using a creative approach and publishing these results in peer reviewed literature.
Michael Kovochich Principal Senior Advisor Read More

Michael Kovochich

Principal Senior Advisor

We're better together

  • Become a client

    Partner with us today to change how tomorrow looks. You’re exactly what’s needed to help us make it happen in your community.

    Contact Us
  • Design your career

    Work with passionate people who are experts in their field. Our teams love what they do and are driven by how their work makes an impact on the communities they serve.

    Join the Team
End of main content
To top