Some doctors won't do hip replacements if the BMI is over 35.
-PJ
And really, why should they?
Not just due to complications, I mean. If a person is that obese, they’re likely to just wreck their hips and knees constantly and want more replacements. Let them pay for them themselves if they choose to live like that.
Your car insurance won’t buy you a new suspension every year if you decide you want to drive around every day carrying twice the load your vehicle is rated for.