Spinal stenosis is a narrowing of the spinal canal, which places pressure on the spinal cord. If the stenosis is located on the lower part of the spinal cord it is called lumbar spinal stenosis. Stenosis in the upper part of the spinal cord is called cervical spinal stenosis. While spinal stenosis can be found in any part of the spine, the lumbar and cervical areas are the most commonly affected.
Surgical Treatment :
In many cases, non-surgical treatments do not treat the conditions that cause spinal stenosis, however they might temporarily relieve pain. Severe cases of stenosis often require surgery. The goal of the surgery is to relieve pressure on the spinal cord or spinal nerve by widening the spinal canal. This is done by removing, trimming, or realigning involved parts that are contributing to the pressure. The most common surgery in the lumbar spine is called Decompressive laminectomy in which the laminae (roof) of the vertebrae are removed to create more space for the nerves. A surgeon may perform a laminectomy with or without fusing vertebrae or removing part of a disc. Various devices (like screws or rods) may be used to enhance fusion and support unstable areas of the spine. Other types of surgery to treat stenosis include the following:
Laminotomy - when only a small portion of the lamina is removed to relieve pressure on the nerve roots. After a retractor is used to pull aside fat and muscle, the lamina is exposed. Part of it is cut away to uncover the ligamentum flavum - a ligament that supports the spinal column Entering the Spinal Canal.
Next an opening is cut in the ligamentum flavum through which the spinal canal is reached. The compressed nerve is now seen, as is the cauda equina (bundle of nerve fibers) to which it is attached. The cause of compression may now also be identified - a bulging, ruptured or herniated disc, or perhaps a bone spur.Removal of the Herniated DiscThe compressed nerve is gently retracted to one side, and the herniated disc is removed. As much of the disc is taken out as is necessary to take pressure off the nerve. Some surgeons will remove all "safely "available" disc material. After the cause of compression is removed, the nerve can begin to heal. The space left after removal of the disc should gradually fill with connective tissue
Foraminotomy - When the foramin (the area where the nerve roots exit the spinal canal) is removed to increase space over a nerve canal. This surgery can be done alone or along with a laminotomy
Medial Facetectomy - when part of the facet (a bony structure in the spinal canal) is removed to increase the spaceSagittal section throught the human lumbar vertebral spine. Facet joints are shown . The ligaments shown are intertransverse ligament (ITL), supraspinous ligament (SSL), interspinous ligament (ISL), ligamentum flavum (LF), anterior longitudinal ligament (ALL), posterior longitudinal ligament (PLL) and capsular ligament (CL).
To know more visit at http://www.spinesurgery-wecareindia.com
Email at info@wecareindia.com
Surgical Treatment :
In many cases, non-surgical treatments do not treat the conditions that cause spinal stenosis, however they might temporarily relieve pain. Severe cases of stenosis often require surgery. The goal of the surgery is to relieve pressure on the spinal cord or spinal nerve by widening the spinal canal. This is done by removing, trimming, or realigning involved parts that are contributing to the pressure. The most common surgery in the lumbar spine is called Decompressive laminectomy in which the laminae (roof) of the vertebrae are removed to create more space for the nerves. A surgeon may perform a laminectomy with or without fusing vertebrae or removing part of a disc. Various devices (like screws or rods) may be used to enhance fusion and support unstable areas of the spine. Other types of surgery to treat stenosis include the following:
Laminotomy - when only a small portion of the lamina is removed to relieve pressure on the nerve roots. After a retractor is used to pull aside fat and muscle, the lamina is exposed. Part of it is cut away to uncover the ligamentum flavum - a ligament that supports the spinal column Entering the Spinal Canal.
Next an opening is cut in the ligamentum flavum through which the spinal canal is reached. The compressed nerve is now seen, as is the cauda equina (bundle of nerve fibers) to which it is attached. The cause of compression may now also be identified - a bulging, ruptured or herniated disc, or perhaps a bone spur.Removal of the Herniated DiscThe compressed nerve is gently retracted to one side, and the herniated disc is removed. As much of the disc is taken out as is necessary to take pressure off the nerve. Some surgeons will remove all "safely "available" disc material. After the cause of compression is removed, the nerve can begin to heal. The space left after removal of the disc should gradually fill with connective tissue
Foraminotomy - When the foramin (the area where the nerve roots exit the spinal canal) is removed to increase space over a nerve canal. This surgery can be done alone or along with a laminotomy
Medial Facetectomy - when part of the facet (a bony structure in the spinal canal) is removed to increase the spaceSagittal section throught the human lumbar vertebral spine. Facet joints are shown . The ligaments shown are intertransverse ligament (ITL), supraspinous ligament (SSL), interspinous ligament (ISL), ligamentum flavum (LF), anterior longitudinal ligament (ALL), posterior longitudinal ligament (PLL) and capsular ligament (CL).
To know more visit at http://www.spinesurgery-wecareindia.com
Email at info@wecareindia.com
No comments:
Post a Comment