All of the following statement true about caudal anaesthesia except-

Caudal is the other name of sacral epidural anaesthesia commonly done in < 7 yrs old children since it is easy to approach is sacral epidural space because of unfused sacral hiatus. The Spine is composed of the veebral bones and interveebral disks. There are 7 cervical 12 Thoracic and 5 Lumbar veebrae. The sacrum is a fusion of 5 sacral veebrae and there are small rudimentary coccygeal veebrae. This encases spinal cord and at every level. Paired spinal nerve exit the central nervous system. The laminae of S5 and all or pa of S4 normally do not fuse, learning a caudal opening to the spinal canal, the sacral hiatus.