Tunica vaginalis blanket wrap to prevent urethrocutaneous fistula: an 8-year experience.

An 8-year review of hypospadias repair in patients with a meatus proximal to the coronal margin is reported. Fistula rates were compared among 4 groups: 1) loupe magnification, 2) tunica vaginalis blanket wrap tissue interposition with loupe magnification, 3) operating microscope magnification and 4) tunica vaginalis blanket wrap tissue interposition in conjunction with operating microscope magnification. Rate of fistula formation with loupe magnification alone was 20%, microscope magnification alone was 12% and tunica vaginalis blanket wrap interposition with loupes was 9%. When tunica vaginalis blanket wrap tissue interposition was used in conjunction with intraoperative microscopy no fistulas resulted.