Metal On Metal Hip Replacement Cobalt Levels

Grübl a 1 weissinger m brodner w gleiss a giurea a gruber m pöll g meisinger v gottsauner wolf f kotz r.

Metal on metal hip replacement cobalt levels.

1 department of orthopaedics medical university of vienna austria. Some medical studies have found failure rates for metal hip replacements reaching as high as 50 within six years of surgery. In most cases a failing hip replacement needs to be surgically replaced. What is considered a high level of chromium and cobalt.

Serum aluminium and cobalt levels after ceramic on ceramic and metal on metal total hip replacement. A diagnosis out of the blue by robert d. Systemic cobalt dissemination from the metasul co 28cr 6mo 0 2c metal on metal total hip prosthesis has been demonstrated in the first year after implantation. Really high metal levels are alarming.

One year after surgery average cobalt levels had risen to 417 nmol l for mom patients but only 33 nmol l for mop patients. Bunning md facp facr. Released a report saying that concentrations higher than 7 parts per billion ppb of cobalt and or chromium are of concern. Average cobalt levels before hip replacement surgery were 21 nmol l for mom patients and 19 nmol l for mop patients.

Slightly elevated metal levels are normal for patients with metal on metal hip replacements. Many metal hip replacements were constructed using a hard metal called cobalt in order to extend the life of the hip replacement. Cobalt toxicity can occur with metal on metal and metal on polyethylene hip implants.