title: Continence mechanisms following transphincteric urethroplasty.
abstract: Urinary continence mechanisms were studied in 6 patients, 5 of whom had undergone end-to-end urethroplasty for membranous urethral strictures. All patients were able to interrupt the urinary stream on command by contracting the distal intrinsic sphincteric mechanism, despite an absent extrinsic sphincter. In 2 patients with prostatectomy and transphincteric urethroplasty, the intrinsic sphincteric mechanism was the sole remaining sphincter. These observations suggest that the intrinsic sphincteric mechanism is intramurally located, is also under somatic innervation and alone is capable of performing all of the sphincteric function required in the male.
authors.affiliation: Department of Urology, Einstein/Montefiore Medical Center, Bronx, N.Y.
authors.forename: R E
authors.initials: RE
authors.lastname: Reid
authors.forename: S M
authors.initials: SM
authors.lastname: Berman
authors.forename: E
authors.initials: E
authors.lastname: Laor
authors.forename: B M
authors.initials: BM
authors.lastname: Tolia
authors.forename: S P
authors.initials: SP
authors.lastname: Schweizerhof
mesh_terms: D006801:Humans; D008297:Male; D014521:Urethra / Q000503:physiopathology* / Q000601:surgery; D014525:Urethral Stricture / Q000601:surgery*; D014554:Urination