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Metal on metal hip implant manufacturers have long tried to downplay the severity of revision hip replacement surgery. Revision surgery is not the same procedure as hip replacement surgery. People often assume that just because the hip replacement surgery was relatively easy, that revision surgery would be similar. Unfortunately, it doesn’t work that way.
Side Effects and Complications Associated With A Stryker Revision Surgery
Here are some of the many risks and complications that accompany revision surgery:
- Dislocation. The risk of dislocation is much higher with revision surgery. Between 2% and 26% of patients will experience dislocation, depending on the specific circumstances procedure.
- Bone loss. Bone surrounding the old implant will often need to be removed. In mild cases revision femoral stems can be used. In many cases, bone grafting and bone stock implantation is necessary.
- Tissue loss. This often happens with metal on metal implants. Tissues around the metal on metal surface will often have metal poisoning an need to be removed.
- Nerve damage. Between 3% to 8% of patients experience nerve damage.
- Arterial or vein damage. Blood vessels can get damaged during the procedure.
- New bone formation. Revision surgery can cause bones to form in unnatural places.
- Bacterial infection. Areas around the surgery area can get infected.
- Cracked thigh (femur) bone. This can require further surgery to correct.
- Extended rehabilitation. Rehabilitation from revision surgery will take longer than the original hip implant.
- Death of the patient.
Why Are Hip Revision Surgeries More Difficult Than The Original Procedure?
Revision surgery is also more difficult because the area surrounding the implant has weakened. The mechanical components inside the metal on metal implant tend to loosen and wear over time. As these components loosen, they subtly take up more space in the body. This causes the body to slowly leak bone fluid, which dissolves and is re-absorbed into the bloodstream, causing a loss of bone density. This causes a process called bone resorption.