The main goal of spinal stenosis surgery is to remove the structures that are compressing the nerves in the spinal canal or the nerve roots. Through spinal stenosis surgery, the damaged parts of your spine can be removed or adjusted. If the surgery is successful enough to increase the spinal canal and remove the pressures on the nerves, the feeling of pain, numbness, and weakness in you legs would be disappear gradually.
Lumbar spinal stenosis is a medical condition in which the spinal canal in the lower back, narrows and compresses the spinal cord and nerves. This narrowing occurs when the growth of bone or tissue or both make the orifices in the spinal bones smaller than before. As a result of the narrowing, the branch nerves coming from the spinal cord are oppressed and stimulated. At the same time, the spinal cord itself is also oppressed and stimulated. Usually, this may result in pain, numbness, or weakness, most often in the legs, feet, and buttocks.
If your spinal stenosis symptoms have no improved after trying non-operative treatments for a long term prescribed by your doctor, it is a good choice for you to perform a spinal stenosis surgery. Some imaging tests (such as MRI) is necessary since they help to find out the exactly location of the spinal tunnel narrowing. Before making a decision on surgery, you and your doctor should discuss carefully combined with your spinal stenosis symptoms and the imaging tests results.
Surgery for spinal stenosis is advisable when you come up with progressive pain, numbness, and weakness in the legs that prevent you from normal daily activities or work, and decrease the quality of your life seriously. Furthermore, you should consider cautiously enough if you have some medical conditions that make you hard to recover form the surgery.
In most cases, Surgery for lumbar spinal stenosis can be very successful for 80% of people who suffer from the leg symptoms since it really has great effect on reducing leg pain and improving you walking ability. However, to those left 10% to 20% sufferers, the leg symptoms would probably reappear several years later.
The surgeries for spinal stenosis are numerous, and the main type is decompressive laminectomy. It is to remove the structures that are compressing the nerves in the spinal canal or vertebral foramen, and then create new space for nerves. In some cases this can be performed alone, but in other cases it must be combined with lumbar fusion which will do to stabilize the spine. Spinal fusion not only contributes you to move around easily but also prevent the bones from splitting out of original position.
In cases when people suffer from lumbar spinal stenosis, they are more likely to choose a surgery to relieve it. However, surgery for spinal stenosis does not often relieve all back pains related to lumbar spinal stenosis.
It is only proved that surgery has great effect on leg symptoms, such as pain, numbness, or weakness.