Mechanical and sensory testing of overfilled breast implants

Saline-filled breast implants can be safely filled far beyond manufacturer's recommendations with regard to the mechanical properties of the Silastic polymer implant shell. Clinical judgment is required to avoid hardness due to overfill. Repeating this study using an in vivo incubation method is required to determine how overfill will affect implant shells over time in the harsh milieu of a biologic environment.