Silicone breakdown and capsular synovial metaplasia in textured-wall saline breast prostheses.

Saline-filled prostheses are currently the only type of prostheses available for cosmetic use in the United States because of concerns raised about the possibility of systemic toxicity of silicone-filled artificial mammary implants. Although the approved implants are saline-filled, their potential to release silicone particles from the shells has not been systematically evaluated. We performed microscopic examination of the pericapsular tissue of 54 patients with textured-surface implants and compared these with 51 patients with smooth-walled implants over a 2-year period