In many cases, the implant will remain intact. However, if there is a sudden trauma to an aged breast implant, as during a mammogram or a car accident, this can provoke an implant rupture. When a saline implant ruptures, the patient will typically notice a decrease in the size of the breast. Sep 12, - Implant rupture may be detected by physical exam, ultrasound or magnetic resonance imaging (MRI). The majority of silicone implant ruptures.