Re: Size and weight of knee replacement hardware?
I've held the TKR implants and they weigh more than the bone it replaces. So she actually weighs less than 105lbs, comparatively. As for the by-pass, I imagine they took out more than they left so that would mean she's lighter that way so perhaps the two balance each other out. That would be based on a true by-pass rather than lap band or anything where a device was implanted.
As for the difference between the implant and the actual bone, I don't know how much but was told and felt them for myself, they are heavier. Maybe a pound or so difference.