ANATOMICAL STUDY OF THE CAVERNOUS NERVE IN RELATION TO NERVE SPARING OPERATION

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Abstract
Recently, nerve sparing radical prostatectomy has became widely considered as the primary goal for maintaining a high standard of quality of life (QOL). However, anatomical localization of the cavernous nerve has not yet been precisely clarified in terms of the terminal end in the corpus cavernous penis distal to the urogenital membrane. Here in attempt to demonstrate the precise localization of the cavernous nerve, in six adult male cadaver. The cavernous nerves ran between the prostatic capsule and the prostatic fascia, through the capsule of the seminal vesicle. The nerves penetrated the membranous urethra at 8 mm from the margin of the urethra at the position of 5 and 7 o'clock. Therefore, the following procedures are critical to achieve successful nerve sparing: 1) meticulous division of the seminal-vesicle, 2) precise separation of the neurovascular bundle between the prostatic capsule and fascia, and 3) the careful transaction of the membranous urethra.

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