Fig. 3.

A : A disposable 11-gauge Jamshidi needle is inserted with maintaining the angle at 45° to 50° between the horizontal plane and the needle, and is advanced to the outer border of the base of the ipsilateral pedicle, through the ligament complex of the costovertebral joint in the thoracic spine or the transverse process in the lumbar spine, and is advanced to the center of vertebral body. B : The tip of the needle is directed to the point where the anterior cortex of the fractured body meets the inferior end plate on the lateral view.