Find the puncture point anesthetized by the epidural puncture needle for each abdominal operation

The puncture point should be selected according to the surgical site, generally the corresponding spinous process space in the center of the surgical scope is used. Usually the upper limb puncture point is in the thoracic 3~4 spinous process space, the upper abdomen surgery is in the chest 8~10 spinous process space, the mid-abdominal surgery is in the chest 9~11 spinous process space, and the lower abdomen surgery is in the chest 12 to waist 2 spinous process space. Lower limb surgery is performed in the lumbar 3-4 spinous process space, and perineal surgery is in the lumbar 4-5 space. Sacral canal anesthesia can also be used. To determine the spinous process space, generally refer to the anatomical landmarks of the body surface. For example, the prominent spinous process on the neck is the inferior cervical spinous process; the spine lines on both sides intersect the thorax 3 spinous processes; the two subscapular horns intersect the thorax 7 spinous processes; the highest points of the iliac crests on both sides intersect. In the lumbar 4 spinous process or the lumbar 3~4 spinous process gap.

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