Metal On Metal Hip Replacement Cobalt Levels

What is considered a high level of chromium and cobalt.

Metal on metal hip replacement cobalt levels.

Average values in patients operated are 4 1 1 5 microg l for cobalt 0 3 0 1 microg l in the control group and 4 5 2 9 microg l for chromium 4 7 2 4 microg l in the control group. The results obtained confirm the presence of an increase of cobalt inthe blood of patients after total hip replacement while the chromium levels are almost alike. Released a report saying that concentrations higher than 7 parts per billion ppb of cobalt and or chromium are of concern. Two years after surgery cobalt levels had risen to 538 nmol l for mom patients and 57 for mop patients.

Slightly elevated metal levels are normal for patients with metal on metal hip replacements. Metal on metal hip implants were often constructed with cobalt and chromium. Besides the symptoms associated with other forms of metallosis cobalt toxicity can cause patients to suffer from fever inflammation and low thyroid levels. Bunning md facp facr.

A diagnosis out of the blue by robert d. One year after surgery average cobalt levels had risen to 417 nmol l for mom patients but only 33 nmol l for mop patients. The body naturally stores a certain level of cobalt and chromium for healthy cellular function. But plants animals and humans need only tiny amounts of it to survive.

Really high metal levels are alarming. As hip replacements fail and metal flakes enter the body patients can suffer from cobalt toxicity elevated cobalt levels. This year s international story of cobalt toxicity occurring from metal wear after total hip replacement surgery was first broken during a session at the acr winter symposium on jan.