PMC7848823_01
Principal steps of laparoscopic PN decompression. A. Peritoneal incision lateral to umbilical artery. B. Progressive exposition of obturator? vein, internal obturator muscle and tendinous arch of levator ani muscle; C. Incision of sacrospinous ligament and coccygeus muscle fibers. D. Complete isolation of pudendal artery and nerve from its entrance into deep pelvis to Alcock's canal. Subsequent transposition of pudendal nerve from the ischiatic spine.
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Alcock's canal. At the end of the decompression, the right PA was noted to be pulsating (Figure 1).