Epidural Space Spinal Cord
The epidural space is the area between the outermost layer of tissue and the inside surface of bone in which the spinal cord is contained i e the inside surface of the spinal canal.
Epidural space spinal cord. Between the arachnoid and the pia mater which is applied to the spinal cord is cerebrospinal fluid. 1 2 the anatomy term epidural space has its origin in the ancient greek language. Epidural space neuraxial anesthesia.
In anatomy the epidural space is the potential space between the two layers of the dura mater the outermost meningeal layer that covers the brain and spinal cord. The epidural space runs the length of the spine.
The spinal epidural space is located in the spinal canal between the spinal dura mater and the vertebral column and extends from the foramen magnum to the sacral hiatus. It is typically 4 6 mm in depth 4. The epidural space contains fat epidural veins spinal nerve roots and connective tissue figure 6b the subdural space is a potential space between the dura and the arachnoid and contains a serous fluid.
The dura mater contains the arachnoid mater. The epidural space fig. In different people the size of the epidural space can vary.
1 4 the incidence is 5 to 10 and up to 40 in patients with pre existing nonspinal bone metastases. That space is known as the intervertebral foramen. The spinal canal enclosed within these structures is also known as the epidural space apart from the central portion occupied by the dural sac and its contents.
The subdural compartment is formed by flat neuroepithelial cells that have long interlacing branches. The epidural space is entered when a needle passes through the ligamentum flavum. The epidural space is the most common site of metastases producing injury to the spinal cord.