PSEUDOTUMORS FROM METAL HIP REPLACEMENTS

SYMPTOMS, COMPLICATIONS, SIDE EFFECTS
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What is a Pseudotumor?

A pseudotumor is a large, solid, or semi-liquid mass of soft tissue growth inside the body, usually around the hip joint. It’s a complication associated with metal on metal (MoM) hip replacements. Typically, pseudotumors form as a negative reaction to metal debris. When the metal ball and metal cup of the hip implant rub together, they create enough friction to shed these cobalt and chrome particles into the blood stream, muscle, and tissue.

The main symptoms of a pseudotumor are pain, swelling, and clicking at the hip site. Pseudotumor formation has been associated with high blood levels of cobalt and/or chromium. These lesions or masses are not malignant, so they should not be confused with cancerous tumors. However, they can pose serious health problems.

Causes of Pseudotumors

There are several theories as to what causes pseudotumors to form in people with metal on metal hip implants:

  • Worn particles coming off of the device.
  • An increase in metal ion levels in the blood caused by debris that is given off from the friction of the prosthetic device.
  • Hypersensitivity

Symptoms of Pseudotumors

Many people with pseudotumors will have NO symptoms at all. For those who DO have symptoms, they may not show up until many years after the hip replacement operation. Those symptoms can include:

  • Pain around the hip or groin areas
  • Swelling, including around the foot or ankle
  • Clicking sound in the hip
  • Hip joint dislocating
  • Decreased range of motion

Diagnosis of Pseudotumors

In many cases, pseudotumors will not show up on x-rays. If your doctor suspects you have a pseudotumor, he or she may order a combination of these diagnostic tools:

  • MRI
  • Ultrasound
  • CT scan
  • Blood test
  • Aspiration: A needle is used to drain fluid from the joint to rule out infection.

What happens if you are diagnosed with a pseudotumor?

Your doctor may recommend revision surgery to remove your current metal-on-metal hip implant and replace it with a new device. Every patient’s case is different, so it’s important that you see your doctor and consider seeking a second opinion before undergoing surgery.

You can contact our law firm for a case evaluation by filling out our contact form below or by calling us toll-free at 888-952-5242.

Metal Poisoning or Metallosis

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