Pedicle of vertebral arch

Pedicle of Vertebral Arch

The Pedicle of Vertebral Arch is a significant anatomical structure in the vertebral column, also known as the spine. It is one of the two short, stout processes that extend from the posterior aspect of the vertebral body, forming the base of the vertebral arch.

Anatomy

The pedicles are located on either side of the vertebral body and serve as the connection between the anterior and posterior parts of the vertebra. They are directed backwards and slightly upwards and outwards. The superior and inferior vertebral notches on the pedicles form the intervertebral foramina when the vertebrae are stacked together in the vertebral column.

Function

The primary function of the pedicle is to provide structural support to the vertebral arch and transmit loads from the vertebral body to the posterior elements. It also plays a crucial role in protecting the spinal cord and spinal nerves that pass through the intervertebral foramina.

Clinical Significance

In clinical practice, the pedicle is often used as a landmark for various surgical procedures involving the spine. For instance, in Pedicle screw fixation, screws are inserted into the pedicle to stabilize and strengthen the spine. However, due to its close proximity to vital structures, any damage to the pedicle can lead to serious complications such as neurological deficit.

See Also

• Vertebral column
• Vertebral arch
• Spinal cord
• Spinal nerves
• Pedicle screw fixation