Can I refill 25 year old Breast Implants via the ports?

No, they will not be able to be refilled since the outer bag is probably leaking by now. You need new implants, or keep what you have until they are totally flat.

The old saline implants can be filled fuller by putting the filling tube back in the implant port and adding saline. But this cannot be done without going to the operating room and having the same incision opened and dissecting down to the implant. If you do that it only makes sense to put in a new implant and start fresh. 25 year old implants should always be replaced if you are operating on the breast, not just refilled. You also have the opportunity to go bigger or smaller or go to silicone if you would like. Good luck.

I would not recommend refilling these implants. If they have buckled it may be that the silicone or saline shell has ruptured. In any case, manipulating these implants may lead to further damage. You would pay for surgery and then possibly need them revised soon after. I would recommend exchange for new form stable, cohesive gel implants than can last.