Question

Describe the anatomy of caudal epidural space with a suitable diagram.

Hint:

The caudal epidural space is clinically significant in procedures like caudal block, commonly used in pediatric anesthesia and pain management.

Answer 1

The caudal epidural space is located at the lower end of the spinal canal. It is a continuation of the epidural space of the lumbar and thoracic regions but is located in the sacrum. This space is filled with loose connective tissue, fat, and veins. The caudal epidural space is bounded by the sacral vertebrae, which have a triangular shape, and the sacrococcygeal ligament, which separates it from the subarachnoid space. The key anatomical landmarks are: 
- Sacral vertebrae: These form the bony boundaries of the caudal epidural space. The sacrum is triangular in shape, with an opening called the sacral hiatus at the lower end. 
- Sacrococcygeal ligament: A fibrous ligament that forms the posterior boundary of the caudal epidural space. It connects the sacrum to the coccyx. 
- Caudal canal: The canal extends from the sacral hiatus and contains nerve roots, providing a route for the caudal epidural injection. 
A suitable diagram would show the sacrum with the sacral hiatus, the sacrococcygeal ligament, and the location of the caudal epidural space within the sacral region.