[Implants in urology].

During the past three decades, the use of implants both in urology and other surgical specialties has experienced exponential growth. The development of implantable genitourinary prostheses has similarly grown from simple testicular substitutes to the large group of implantable penile prostheses, artificial urinary sphincters, prostheses in neurology, and possible future developments of artificial bladder and ureteral materials. The majority of urologic prostheses are constructed of silicone, because it is relatively inert, but nevertheless silicone causes some local tissue reactions and deteriorates with time. Currently, much research is underway studying the effects on the human host. Although multiple mechanical malfunctions of these prosthetic devices have occurred, periprosthetic infection is the most disastrous complication which usually leads to removal of the prostheses. This article gives the clinician an overview of common complex urologic implants, especially the current development of prostheses in the field of neurology.