Inflatable Penile Prosthesis Implantation Without Corporeal Dilation: A Cavernous Tissue Sparing Technique

PurposeWe compared the advantages and disadvantages of initial penile implantation with vs without prior dilation of the corpora cavernosa.Materials and MethodsPatients implanted for the first time with a 700CX™ or an antibiotic coated 700CX InhibiZone™ 3-piece prosthesis by a single surgeon during January 2005 to December 2006 were included in the study. They were randomized to penile implantation without (group 1) or with (group 2) penile dilation. Postoperative pain was measured on the day after surgery and at day 7 postoperatively. Perioperative and postoperative complications were recorded. Residual erectile activity without prosthesis inflation was evaluated using the International Index of Erectile Function at 3-month intervals for 9 months. Patients recorded penile length and girth during maximum sexual stimulation during this time.ResultsA total of 100 patients were included in the study. Intraoperative complications occurred in 2 group 1 and 3 group 2 patients. Postoperatively complication rates and types were similar in the 2 groups. Pain was significantly greater in group 2 (p <0.01). Immediately postoperatively, and at 3 and 6 months penile length was significantly greater in group 1 than in group 2 (p <0.05). Mean International Index of Erectile Function scores were higher in group 1 (12, range 10 to 14 vs 7, range 6 to 8).ConclusionsResults suggest that penile dilation is not necessary in primary implantation cases.