Stryker hip implants expert witnesses practice in a variety of fields, including orthopedic surgery, biomedical engineering, medical device design, and regulatory compliance. Some of the most common specialties include implant failure analysis, revision hip surgery, prosthetic biomechanics, and FDA device approval standards. They can opine on the effects of Stryker hip implant defects, metallosis, revision outcomes, long-term mobility, and patient safety.