Hi
Please remember that a MOM metal on metal THR uses the same acetabular cup and basically femur ball component except it is on a long stem than a short stem. So if you can't find a hip resurfacing device large enough for you - then you can't find a modern, large ball THR.
I would be very careful who I used since you are younger and are large. I would only get opinons from several of the top, most expeirnced hip resurfacing surgeons. See my list to see who is closest to you. Most people do need to travel to get their hip resurfacing and often their MOM THRs if the local ortho doesn't use them.
You need to have a lot of questions answered and best by the top surgoens. A few surgeons like Dr. Gross and Dr. Rogerson will give you a free email consultation if you send them an email with a copy of your x-rays in a digital format. They will tell you if you are a good candidate.
http://www.surfacehippy.info/listofdoctors.phpMost local orthopedics are not specialists in hip resplacment - they do a little of this and a little of that. So use only surgoens that do a large amount of hip resurfacings or THRs. All the top hip resurfacing surgeons also do many THRs. So they can give you great information on either solution.
Pat