What advice would you offer to patients with a history of keloids and scarring when preparing for a breast lift with implants?

The
technique I recommend is The Bellesoma Method. 
The advantage of this method is that the closure around the areola has
minimal tension and less likely to scar. 
Also, the vertical scar is eliminated. 
The only scars will be at or near the inframammary fold.  This technique was developed specifically for
people who have a history of bad scarring. 
Unfortunately, you have not provided photographs or told us your bra
size.  The other alternative, instead of
implants, is fat transfer.  Implants are
not lifetime devices and half are removed by 9.5 years.Best Wishes,Gary Horndeski, M.D. 

Be very careful when pursuing a breast lift. Scarring is part of the process.If there is any way to get a lift without breast lift scars, this would be my first option. Sometimes internal procedures can be done to simulate the lift.There are some newer skin tightening technologies that might also help you get a lift without significant scars.The only way to know for sure is to get a consult with an experienced plastic surgeon. Several opinions would be good in your case.Good luck.