The Anatomic Studies Of The Pudendal Nerve

Objective: Research the relative anatomy data of the pudendal nerve, aswell as its proximity to the anatomical location of the structure. Whichcan let us understand the pudendal nerve anatomy batter,and determinethe scope of the block anesthesia in needle, and its safety area.For vaginalsurgery is pudendal nerve block anesthesia clinical anatomy data asneeded.Materials and methods:50bodies (female) used for teaching,and theyare soaking in formalin for a long time. the specimens is complete,unknown age. Measure the pudendal nerve in the edge of the piriformisand sciatic nerve diameter holes that observe its contorts and distribution;Measure the length of the pudendal nerve three branch and start ofoutside diameter and the maximum length of free pudendal nerve (theedge of the piriformis leave the pelvis to the superior border of sacralnodules ligament); Measure the pudendal nerve from the ischialtuberosity front distance.The results:1. The pudendal nerve ischial spine in vaginal tube are arranged fromtop to bottom has three conditions: perineal tiffany, vaginal arteriovenous,penis dorsal nerve altogether28cases, accounting for56%; Pudendalnerve, vaginal arteriovenous,15cases (30%); Anus nerve, pudendalnerve, vaginal arteriovenous a total of7cases, accounting for14%. Tube in pubic relations with the pudendal nerve and blood vessel arrangementfrom the top down there are two situations:(she) inside the vaginaarteriovenous, penis dorsal nerve and perineal nerve, a total of33cases(66%); Penis tiffany within the dorsal nerve, vaginal arteriovenous,perineal nerve, a total of17cases,34%.2. The pudendal nerve in the left edge of the piriformis diameter was4.23±0.55mm, the right to4.28±0.47mm; Pudendal nerve through a holeand sciatic nerve on the left side of the outer diameter of4.22±0.51mm,the right side was4.20±0.58mm.3. Anal nerve at beginning on the left side of the outer diameter of1.27±0.19mm, the right of1.29±0.13mm; Perineal nerve at beginning of3.01±0.87mm outside diameter on the left, and right of2.89±0.76mm;On the left side of the female clitoris dorsal nerve at beginning ofdiameter of1.36±0.21mm, the right side was1.37±0.20mm.4. The length of the vagina with an average of36.51±7.31mm, theaverage width of11.15±1.97mm.5. Pudendal nerve from the ischial tuberosity on the left side of the frontof the distance of24.43±4.56mm, the right side was24.87±4.21mm.6. Ischial spine and vaginal tube distance perineal skin were75.57±13.17mm and23.57±7.14mm. Conclusion:1, Pudendal nerve block into the needle points in the ischial tuberosity;2, Vaginal tube into the needle can avoid damage vaginal blood vessels,and an edge;3, Iliac spine ligaments thickening and as a result of the swelling ofvaginal tube pudendal nerve vulnerable to conformity and pain.