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• W1993685983 abstract "No AccessJournal of UrologyClinical Urology: Original Article1 Feb 1995Neuroanatomy of the External Urethral Sphincter: Implications for Urinary Continence Preservation During Radical Prostate Surgery Perinchery Narayan, Badrinath Konety, Khalid Aslam, Sherif Aboseif, Walter Blumenfeld, and Emil. Tanagho Perinchery NarayanPerinchery Narayan More articles by this author , Badrinath KonetyBadrinath Konety More articles by this author , Khalid AslamKhalid Aslam More articles by this author , Sherif AboseifSherif Aboseif More articles by this author , Walter BlumenfeldWalter Blumenfeld More articles by this author , and Emil. TanaghoEmil. Tanagho More articles by this author View All Author Informationhttps://doi.org/10.1097/00005392-199502000-00012AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Post-prostatectomy urinary incontinence probably is multifactorial and sphincteric nerve injury could be a contributing cause. Controversy still exists regarding the innervation of the external sphincter, and currently pudendal nerve injury is not believed to be an etiological factor in post-prostatectomy urinary incontinence. To understand better the sphincter and its innervation, we undertook an anatomical and histological study of 18 adult male cadavers, which revealed that the external urethral sphincter receives part of its innervation through special branches originating from the dorsal nerve of the penis after it splits from the pudendal nerve. These nerve branches were located 0.3 to 1.3 cm. from the prostatic apex, and in 50% of the cadavers they were identified only unilaterally or had only 1 branch on each side. The proximity of these nerves to the prostatic apex may make them liable to injury during radical prostatectomy. These nerves are most likely sensory in nature although the presence of motor components cannot be completely ruled out. Injury to these nerves may explain several features of post-prostatectomy urinary incontinence. References 1 : Impact of anatomical radical prostatectomy on urinary continence. J. Urol.1991; 145: 512. Link, Google Scholar 2 : Urodynamic evaluation of incontinence in patients undergoing modified Campbell radical retropubic prostatectomy: a prospective study. J. Urol.1984; 132: 708. Link, Google Scholar 3 : Incontinence after radical prostatectomy--a study of 188 patients. J. Urol.1992; 147: 465. A abstract 1009. Google Scholar 4 : Postprostatectomy incontinence. 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Google Scholar From the Departments of Urology and Pathology, Department of Veterans Affairs Medical Center and Department of Urology, University of California School of Medicine, San Francisco, CaliforniaRequests for reprints: Division of Urology, P. O. Box 100247, University of Florida College of Medicine, Gainesville, Florida 32610-0247© 1995 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited bySong C, Doo C, Hong J, Choo M, Kim C and Ahn H (2018) Relationship Between the Integrity of the Pelvic Floor Muscles and Early Recovery of Continence After Radical ProstatectomyJournal of Urology, VOL. 178, NO. 1, (208-211), Online publication date: 1-Jul-2007.Yee D and Ahlering T (2018) Radical Prostatectomy: A Current PerspectiveJournal of Urology, VOL. 178, NO. 2, (376-377), Online publication date: 1-Aug-2007.van der Horst C, Seif C, Boehler G, Portillo F, Braun P and Juenemann K (2018) Impact of Electrostimulation of Neurovascular Bundles and Pudendal Nerves on the Membranous Urethra in Male RabbitsJournal of Urology, VOL. 175, NO. 4, (1564-1567), Online publication date: 1-Apr-2006.KAIHO Y, NAKAGAWA H, IKEDA Y, NAMIKI S, NUMAHATA K, SATOH M, SAITO S, YOSHIMURA K, TERAI A and ARAI Y (2018) INTRAOPERATIVE ELECTROPHYSIOLOGICAL CONFIRMATION OF URINARY CONTINENCE AFTER RADICAL PROSTATECTOMYJournal of Urology, VOL. 173, NO. 4, (1139-1142), Online publication date: 1-Apr-2005.MARTINEZ PORTILLO F, OSMONOV D, SEIF C, BRAUN P, BOEHLER G, ALKEN P and JUENEMANN K (2018) RESTORATION OF EXTERNAL URETHRAL SPHINCTER FUNCTION AFTER PUDENDAL NERVE END-TO-END ANASTOMOSIS IN THE MALE RABBITJournal of Urology, VOL. 171, NO. 4, (1715-1719), Online publication date: 1-Apr-2004.YUCEL S, de SOUZA A and BASKIN L (2018) NEUROANATOMY OF THE HUMAN FEMALE LOWER UROGENITAL TRACTJournal of Urology, VOL. 172, NO. 1, (191-195), Online publication date: 1-Jul-2004.WILLE S, SOBOTTKA A, HEIDENREICH A and HOFMANN R (2018) Pelvic Floor Exercises, Electrical Stimulation and Biofeedback After Radical Prostatectomy: Results of a Prospective Randomized TrialJournal of Urology, VOL. 170, NO. 2, (490-493), Online publication date: 1-Aug-2003.BADER P, HUGONNET C, BURKHARD F and STUDER U (2018) INEFFICIENT URETHRAL MILKING SECONDARY TO URETHRAL DYSFUNCTION AS AN ADDITIONAL RISK FACTOR FOR INCONTINENCE AFTER RADICAL PROSTATECTOMYJournal of Urology, VOL. 166, NO. 6, (2247-2252), Online publication date: 1-Dec-2001.HUGONNET C, DANUSER H, SPRINGER J and STUDER U (2018) URETHRAL SENSITIVITY AND THE IMPACT ON URINARY CONTINENCE IN PATIENTS WITH AN ILEAL BLADDER SUBSTITUTE AFTER CYSTECTOMYJournal of Urology, VOL. 165, NO. 5, (1502-1505), Online publication date: 1-May-2001.WEI J, DUNN R, MARCOVICH R, MONTIE J and SANDA M (2018) PROSPECTIVE ASSESSMENT OF PATIENT REPORTED URINARY CONTINENCE AFTER RADICAL PROSTATECTOMYJournal of Urology, VOL. 164, NO. 3 Part 1, (744-748), Online publication date: 1-Sep-2000.HUGONNET C, DANUSER H, SPRINGER J and STUDER U (2018) DECREASED SENSITIVITY IN THE MEMBRANOUS URETHRA AFTER ORTHOTOPIC ILEAL BLADDER SUBSTITUTEJournal of Urology, VOL. 161, NO. 2, (418-421), Online publication date: 1-Feb-1999.BURNETT A and MOSTWIN J (2018) IN SITU ANATOMICAL STUDY OF THE MALE URETHRAL SPHINCTERIC COMPLEX: RELEVANCE TO CONTINENCE PRESERVATION FOLLOWING MAJOR PELVIC SURGERYJournal of Urology, VOL. 160, NO. 4, (1301-1306), Online publication date: 1-Oct-1998.CREED K, VAN DER WERF B and KAYE K (2018) INNERVATION OF THE STRIATED MUSCLE OF THE MEMBRANOUS URETHRA OF THE MALE DOGJournal of Urology, VOL. 159, NO. 5, (1712-1716), Online publication date: 1-May-1998.Eastham J, Kattan M, Rogers E, Goad J, Ohori M, Boone T and Scardino P (2018) Risk Factors for Urinary Incontinence after Radical ProstatectomyJournal of Urology, VOL. 156, NO. 5, (1707-1713), Online publication date: 1-Nov-1996. Volume 153Issue 2February 1995Page: 337-341 Advertisement Copyright & Permissions© 1995 by American Urological Association, Inc.MetricsAuthor Information Perinchery Narayan More articles by this author Badrinath Konety More articles by this author Khalid Aslam More articles by this author Sherif Aboseif More articles by this author Walter Blumenfeld More articles by this author Emil. Tanagho More articles by this author Expand All Advertisement PDF downloadLoading ..." @default.
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