Early experience with the controlled girth and length expanding cylinder of the American Medical Systems Ultrex penile prosthesis.

A prospective study was done to evaluate length expansion characteristics of the AMS Ultrex penile prosthesis cylinder intraoperatively and in the early postoperative period. A total of 50 patients 30 to 74 years old (mean age 55.2 years) underwent implantation of this device. Intraoperative changes in the pubis to mid glans distance between deflation and inflation ranged from 1 to 4 cm. (mean 1.9). Postoperative followup measurements were obtained in 46 patients at 1 to 15 months (mean 4). There was a 1 cm. decrease in the amount of postoperative length expansion for 6 patients, while length expansion increased by 1 cm. for 12 and for 28 the postoperative length expansion was the same as the intraoperative length expansion.