Underwire Bra After Bottomed out Implant Revision?

When we revise the lower fold of the breast, we usually recommend support for the area, often through an underwire bra. If the bra is uncomfortable or painful, we usually recommend not to use it, but rather to use a well formed sports bra.
The surgical goal after such a repair is to allow the tissues to heal to each other, rather than to succomb to the downward pressure of the breast implant.
The larger and heavier the breast implant, and the less natural resistance the patient's tissues offer, the more challenging such repairs are.
Every surgeon has his or her own protocol, so you should communicate your concerns with your surgeon.

The support and pressure of the underwire on the sutured tissue can be beneficial and increase the potential for a good result. The bra must be a good fit; if not, the wrong forces can be applied and displace the implant in the wrong direction.This can cause disruption of the repair and recurrence of the "bottomed out" device.

If you are having revisional surgery to lift a bottomed out implant, I do think that external support (an underwire bra) of some sort is helpful to hold the tissues in place until they heal internally. It's like putting a cast on a broken bone until the bone heals in place. Obviously the bra has to fit comfortably, but to harm the wound healing, I think it would have to be extremely tight, to the point of being uncomfortable at which point you would adjust the bra.
In summary, I am a fan of a bra of some type, and in your case, probably an underwire. You could even pad the bottom of the bra to "over correct the implant position" so that the internal sutures will not be stressed during the initial healing.