No, it's not need to be exchanged every 10 years- I tell my patients that “if it ain't broke we don't fix them".
In regards to tuberous ( constricted) breasts, implants can be very helpful used appropriately during the surgical procedure. In general, tuberous breasts have a very narrow base, short distance from areola to inframammary fold, tight (constricted) lower pole of the breasts, relatively wide space between the breasts, "puffy" and areola and some degree of ptosis (drooping).
Generally, the procedure involves breast augmentation with areola reduction / mastopexy procedure. The distance from the inframammary fold is increased (to create a more rounded out appearance). Proper implant positioning improves the distance (cleavage) between the breasts. The areola reduction helps to treat the pointed and "puffy" appearance of the areola.
In the most severe cases of tuberous breast, a more complete breast lift may also be necessary. In many cases however, a lift is not necessary. The patient should be aware that the final result will take months to see and that they will need to be patient and that revisionary surgery is more likely than in patients who do not present with tuberous (constricted) breasts.