Selection of the puncture point of the epidural needle

Different intervertebral spaces such as cervical vertebrae, thoracic vertebrae, lumbar vertebrae, and sacral canal can be selected according to the requirements of different treatments or anesthesia parts of the patient. Refer to the following anatomical landmarks on the body surface: (1) The largest protrusion of the cervical spinous process is the seventh cervical spinous process. (2) The connection between the scapular spine on both sides is the spinous process of the third thoracic vertebra. (3) The connection of the scapular angle is the spinous process of the seventh thoracic vertebra. (4) The line connecting the highest points of the iliac crests on both sides is the 4th lumbar spinous process or the lumbar 3-4 spinous process space. The surface signs of the sacral canal are the sacral hiatus and sacral angle

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