Removing the Spinous Process First, the surgeon creates a small incision to access the spine. The spinous processes are the bony protrusions that stick out from the rear of the spine. The surgeon carefully removes the spinous process from the vertebra or vertebrae that need treatment.
Removing the Lamina Next, the surgeon removes the lamina. This is the part of each vertebra that forms the rear portion of the spinal canal. Removing the lamina opens the spinal canal, creating more space for the nerves. The surgeon may need to remove the lamina from more than one vertebra to fully relieve the pressure.