Related Experiment Video
Updated: Aug 18, 2026

Urethral Stricture Induction Followed by Buccal Mucosa Graft Urethroplasty in a Rat Model
Published on: April 28, 2023
Reconstructive surgery of male urethra using human amnion membranes (grafts)--first announcement
Andrzej Koziak1, Adam Marcheluk, Tadeusz Dmowski
1Departament of Urology, Specialised Regional Hospital Hospital in Siedlce, Poland. urologiasiedlce@wp.pl
Objective:
Assessment of technical aspects of the surgical procedure and usefulness, suitability and efficacy of human amnion grafts as a biomaterial in reconstructive surgery of strictured male urethra.
Patients And Methods:
Human amnion membranes were used in 2 men suffering from long, recurring strictures of urethra. Narrowed part of urethra was careful prepared and cleaned of adjacent tissue. Then a longitudinal incision was performed through the whole length of strictured segment and then it was covered with human amnion membrane.
Results:
Hospitalization time 4 to 5 days. The Foley catheter was removed 2 weeks after surgery 3 months after surgery controlled urethrographies and urethroscopies show wide urethra lumen, wider than in adjacent parts. In urethroscopy operated place covered with epithelium, smooth, without scare.
Conclusions:
Human amnion grafts and described technique seem to be a promising method of managing long, recurring male urethra strictures but need long-term follow-up and analysis of more cases.

