[Application of a free flap from urinary bladder mucosa for urethroplasty in experiment].

Experiments on 8 rabbits have demonstrated that mucosa of the urinary bladder freely transplanted into the subcutaneous fat or under the muscular fascia is engrafted with unaffected normal histological structure and revascularized with vessels invading from the adjacent tissues. Urethroplasty with a vesical mucosa graft was made in 10 dogs with experimental urethral stricture (4 animals), urethral fistula (5 animals) or a combination of urethral stricture and fistula (1 animal). A positive result with reestablishment of normal urethral passability and elimination of urinary fistula was achieved in 9 animals (followup for 1 year).

[Usage of the novel synthetic material carbilan for urinary tract reconstruction in experiment].

Carbilan was tried as a new synthetic suturing material and ureteral prosthesis in reconstruction surgery on the urinary tracts. In experiments on 24 dogs carbilan suturing threads were used for establishment of ureteral-ureteral and vesicoureteral anastomoses, suturing of the ureter, bladder or urethra. In a comparative group of 36 dogs such operations were made using chrome-plated catgut.