The transperineal ultrasound guided pudendal nerve block is indicated for postoperative analgesia after pelvic floor surgery including rectal extirpation.
The described technique is invented by Dr. Teresa Parras from St. Georges Hospital, London, UK, who has contributed the sonoanatomy pictures of the module.
The pudendal nerve exits the pelvis through the greater sciatic foramen whirls around the ischial spine and enters the ischioanal fossa through the lesser sciatic foramen.
