Long-lasting complications with the use of polyurethane-covered breast implants.

Polyurethane-covered breast implants have been recommended by some authors for aesthetic and reconstructive procedures, since with these implants the incidence of capsular contracture is insignificant and risks of implant displacement or exposure are reduced. Reports on the use of these implants focus merely on aesthetic aspects, and risks associated with disintegration and incorporation of the polyurethane-coating are often overlooked. The authors have observed several complications associated with the use of these prostheses; two cases of long-lasting complication are described, which are ascribed to difficult removal of infected fragments of the coat and to delayed foreign body reaction to polyurethane. The authors believe that the hazards associated with these implants outweigh their advantages for primary use, but suggest their use for secondary procedures in patients who have had recurrent problems with smooth implants.