Metal Hip Implant Injuries: Metallosis and Revision Surgery Claims

A dull ache in the groin that will not quit. A hip that clunks with every step. Blood tests showing cobalt levels high enough to threaten the heart, the thyroid, the brain. For tens of thousands of people who trusted a metal-on-metal hip implant to restore mobility, the surgery meant to give them back their lives became the source of a devastating new injury.

Metallosis—the accumulation of metallic debris in the body's soft tissues—can turn muscle into dead tissue, destroy bone, and seed the bloodstream with toxic ions. When it happens, the fix is not a pill or physical therapy. The fix is another major surgery: a revision, often more complex and risky than the original replacement.

Facing a revision means facing hard questions about what went wrong and who should bear the cost. The law provides pathways for patients to seek compensation, but those paths require understanding how the injury happened, what duties were owed, and what evidence must be saved. This guide walks through the medical and legal landscape for patients and families staring down a failed metal hip implant.

When a Metal Hip Implant Fails: Recognizing Metallosis and Tissue Damage

Metal-on-metal hip implants use a ball and cup both made of cobalt-chromium alloy. As the joint moves, the surfaces rub together. Microscopic metal particles flake off into the surrounding tissue and enter the bloodstream. Over time, this wear produces a condition called metallosis.

The body reacts to these metal ions with aggressive inflammation. Soft tissue darkens and dies—a phenomenon surgeons call "adverse local tissue reaction" or ALTR. Fluid-filled masses called pseudotumors can form, destroying muscle and bone from the inside. Patients report pain in the hip or groin, swelling, a sensation of the joint slipping, and sometimes a visible lump. Systemic symptoms can include cognitive fog, hearing loss, heart rhythm abnormalities, and thyroid dysfunction. These are not vague complaints; they are signs of a prosthetic joint actively poisoning the body.

Diagnosis typically involves blood testing for cobalt and chromium levels, cross-sectional imaging like an MRI with metal artifact reduction sequences, and a careful physical exam. The U.S. Food and Drug Administration has recommended that patients with metal-on-metal hips receive regular monitoring, even when symptoms are absent. For some, the damage progresses silently until it is severe.

When tissue destruction is advanced, the only treatment is revision surgery. The failed implant must be removed. Necrotic tissue must be debrided. The damaged bone may require grafting. A new implant—usually ceramic-on-polyethylene or another non-metal pairing—is placed. Recovery from revision surgery is frequently longer and more painful than the original hip replacement. Some patients never regain full function. The financial toll, layered on top of the physical one, can crush a family.

"The law asks what a reasonable manufacturer or surgeon would have done with the information available at the time. When risks were known and not disclosed, or defective designs were not corrected, the legal duties owed to patients may have been breached."

Pursuing a Revision Surgery Claim: Legal Duties and Your Rights

A patient harmed by a metal hip implant may have more than one legal claim. Understanding the source of the injury determines who is responsible and what compensation can be pursued. These claims fall into two broad categories: product liability claims against the manufacturer and medical negligence claims against the treating providers. Some patients have both.

Product liability law holds manufacturers responsible when a device is defectively designed, defectively manufactured, or when they fail to adequately warn patients and surgeons of known risks. Metal-on-metal hip implants have been the subject of thousands of lawsuits alleging design defects—the very concept of two metal surfaces grinding together produces unavoidable wear debris. Evidence developed in litigation revealed that some manufacturers knew their implants released high levels of cobalt and chromium ions yet continued marketing them without adequate warnings. A patient who received a recalled or high-failure-rate implant should investigate whether the manufacturer faces pending litigation or has established a settlement program.

Medical negligence claims focus on the care provided by the surgeon and the medical team. The legal standard is not perfection—it is whether the provider acted consistently with what a reasonably careful orthopedic surgeon would have done under similar circumstances. A surgeon who implants a metal-on-metal device after safer alternatives became the standard of care may have breached that duty. A surgeon who fails to monitor a patient after implantation, ignores elevated metal ion levels, or delays recommending revision surgery when it is clearly indicated may also be liable. A failure to obtain informed consent—meaning the patient was never told about the specific risks of metal-on-metal implants or the availability of alternative bearing surfaces—can form the basis of a claim even if the surgery itself was performed with technical skill.

Damages in these cases aim to make the injured person whole. They include the cost of the revision surgery and all related medical care, lost wages during recovery and into the future if disability is permanent, and compensation for physical pain, emotional suffering, and loss of enjoyment of life. Spouses may have a separate claim for loss of consortium—the harm to the marital relationship caused by the injury. In cases where a manufacturer's conduct was particularly reckless, punitive damages may be available to punish the company and deter similar behavior.

Preserving evidence is one of the most critical steps a patient or family can take. The explanted hip implant—the device removed during revision—is a key piece of evidence in a product liability claim. It can be examined by metallurgical experts to measure wear rates and identify manufacturing flaws. The hospital will often classify the explant as medical waste. Patients must instruct the surgical team, in writing before the revision, that the device must be preserved and returned to the patient or their attorney. Medical records, imaging studies, blood test results, and a detailed timeline of symptoms and communications with doctors all become essential proof.

Actions to Protect Your Health and Your Legal Rights

• Get immediate medical evaluation. Request blood cobalt and chromium testing and advanced imaging. Document every symptom, no matter how unrelated it seems. Your health comes first, but thorough medical records also build the foundation for any future claim.
• Preserve the explanted device. Before revision surgery, notify the surgeon and hospital in writing that the removed implant must be saved and not discarded. Tag it for return. This device may be the most important piece of evidence in a product liability case.
• Gather your records now. Collect all operative reports, implant sticker sheets identifying the exact make and model, imaging from before and after the original surgery, lab results, and any correspondence with your surgeon's office. Organize them chronologically.
• Consult an attorney experienced in both medical device and medical malpractice litigation. These cases intersect two complex areas of law. An evaluation should be free and can tell you which claims exist, what they may be worth, and how much time you have to act.

Frequently Asked Questions

Q: How long do I have to file a claim after a failed metal hip implant?
Statutes of limitation vary by state, but the clock generally starts running when the patient knew or reasonably should have known they were injured and that the implant might be the cause. A patient who was told their pain was "normal wear and tear" may have a later start date. Because these deadlines can be as short as one or two years in some states, consulting an attorney promptly is critical.

Q: My surgeon never mentioned metallosis or metal poisoning as a risk. Is that legal?
The doctrine of informed consent requires that a patient be told about material risks—the ones a reasonable person would want to know before deciding to proceed. The risk of metallosis from a metal-on-metal implant, especially when safer alternatives exist, is precisely the sort of risk that should have been disclosed. A failure to do so may constitute medical negligence independent of how the surgery was performed.

Q: I already had revision surgery and the hospital threw away my old implant. Can I still bring a claim?
While the explanted device is valuable evidence, its absence is not necessarily fatal to a claim. Other evidence—medical records, imaging showing tissue damage, blood metal ion levels, and expert testimony about the implant's known failure rates—can still support a case. An attorney can assess what remains available and how to proceed.

Q: How are these cases paid for? I cannot afford a lawyer right now.
Attorneys who represent injured patients in medical device and medical negligence cases almost always work on a contingency fee basis. This means the lawyer is paid only if the case results in a settlement or verdict, and the fee is a percentage of the recovery. The initial consultation should be free and carries no obligation.

If you or a family member is dealing with an injury you suspect was caused by negligence, request a free, confidential case review through this site. A quick review can tell you where you stand and what your options are.