Follow-up with Mentor two-piece inflatable penile prosthesis

Between October, 1987 and June, 1993, we implanted 50 Mentor two-piece inflatable penile prostheses with a mean follow-up of 52.18 months (6-72 months). In 7 pts (14%), the implants were removed for various reasons. One pt (2%) had total fluid leak due to breakage of the tube at its junction with the cylinder. One implant (2%) was replaced due to loss of rigidity. Two implants (4%) were removed due to infection and later replaced with semirigid prostheses. Three pts (6%) had pump erosion. There was loss of rigidity in seven implants (14%), which appears to be due to stretching of the tunica albuginea from repeated use. The limited amount of fluid in the resipump precludes compensation for the stretching, leading to loss of rigidity. The overall complication rate of 28% in this long-term series appears to be much higher than that in other reported short-term follow ups. Thirty-six pts (72%) are fully satisfied with the device and 7 pts (14%) are partially satisfied, with an overall satisfaction rate of 86%. In our series, 46/50 (92%) pts have functioning prostheses at the time of review.