Metal shedding usually occurs from metal-on-metal appliances - chromium cup & cobalt ball. These materials were used together for a while in the early 2000's on the theory that the implant would last longer -especially in younger, more active people. It turns out younger, more active people cause more metal on metal friction, with very fine debris being deposited. If the cup is plastic or ceramic, it doesn't seem to be problematic.

I had chromium cobalt hip implants, which had to be replaced after just 5 years due to shedding & metallosis. This is now considered old technology, and if I were the patient I would be asking many questions before I would consent to metal on metal.
Do you know what the other component would be used by your surgeon?
Sue