I had a THR metal on metal surgery. The MOMs are large head THRs that are similar in size to the hip resurfacing heads used in the BHR. http://www.wmt.com/Downloads/CaseStudies/Hips/BFH_Boyd.pdf (http://www.wmt.com/Downloads/CaseStudies/Hips/BFH_Boyd.pdf)
Note added by Patricia Walter to add information
Congratulations on your new MOM THR. I hope you will recover quickly and have a great summer without pain.
Pat