Endoscopic incision of short (<3 cm) urethral strictures after phallic reconstruction

Urethral stricture formation is a frequent complication after phallic reconstruction, but little is known about the treatment. Endoscopic cold-knife incision has long been applied for short urethral strictures. Can this treatment be used for strictures in the phalloplasty patients as well?

Thirty-two endoscopic urethrotomies were done in 22 patients with a phalloplasty. Only noncomplicated strictures shorter than 3 cm were considered appropriate for endoscopic incision. The stricture was treated by a cold-knife incision. The urethral catheter was maintained for at least 2 weeks. Follow-up was done every 3 months during the first year and annually thereafter. Comparing failures with successful cases, prognostic factors for success are assessed.

Median follow-up is 51 months (range, 8-95 months). In 14 patients, no previous intervention was done. Mean stricture length is 1 cm (range, 0.5-2.5 cm). Endoscopic incision was successful in 14/32 cases (43.8%). First incision was successful in 10/22 cases (45.5%), a second incision was successful in 4/7 cases (57.1%), but three or more incisions were never successful (0/3). The only significant difference between failures and successful cases is the interval between phalloplasty and endoscopic incision (32 vs. 9.9 months; p = 0.00008).

Endoscopic incision for short (<3 cm) urethral strictures after phallic reconstruction can solve the problem in about half of the cases. Three or more incisions seem to be useless. Endoscopic incision is significantly better when performed with a long-term interval after phalloplasty, indicating that a well-healed phallic urethra is more prone to a successful endoscopic incision.