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Like all surgical procedures, lumbar decompression surgery carries some risk of complications.
Lumbar decompression surgery is generally effective in relieving symptoms such as leg pain and numbness. However, some people continue to have symptoms after surgery, or develop symptoms again within a few years of surgery.
Recurrent symptoms can be caused by a weakened spine, another slipped disc, or the formation of new bone or thickened ligament that puts pressure on your spinal cord. Scarring around the nerves can also sometimes develop after surgery, which can cause similar symptoms to nerve compression.
Non-surgical treatments, such as physiotherapy, will usually be tried first if your symptoms recur, but further surgery may sometimes be needed. Repeat operations have a higher risk of complications than first-time operations.
Unfortunately, there's no effective treatment for scarring around the nerves. However, you can reduce your risk of scarring by doing regular exercises as advised by your physiotherapist after surgery.
One of the most common complications is an infection where the incision was made. It can usually be treated successfully with antibiotics. Infection can be more likely in patients who have diabetes or use steroids.
There's a risk of developing a blood clot after lumbar decompression surgery, particularly in your leg. This is known as deep vein thrombosis (DVT).
DVT can cause pain and swelling in your leg and, in rare cases, may lead to a serious problem called a pulmonary embolism. This is where a piece of the blood clot breaks off and blocks one of the blood vessels in the lungs.
The risk of developing a blood clot can be significantly reduced by staying active during your recovery or wearing compression stockings to help improve your blood flow. Read more about preventing DVT.
There's a risk of a dural tear occurring during all types of spinal surgery, including lumbar decompression surgery. The dura is a watertight sac of tissue that covers the spinal cord and spinal nerves.
If the tear isn't identified and repaired at the time of surgery, it can lead to cerebrospinal fluid (CSF) leaking after the procedure.
Your surgeon will be aware of the risk of a dural tear, and if it does occur they will close the tear with stitches. In most cases, the repair is successful and no further problems or issues arise. However, further corrective surgery may be required in a small number of cases.
During lumbar decompression surgery, there's a risk of accidental damage to the lining of the nerve, which can lead to the leakage of cerebrospinal fluid (CSF).
If this is discovered during the operation, it will be patched and repaired. However, small leaks can sometimes only become apparent after the operation, causing problems such as a headache and the wound to leak. Further surgery to repair this may be needed.
As you're positioned face down during lumbar decompression surgery, you'll be resting on your forehead and chin while the operation is carried out.
The anaesthetist will check regularly to make sure this isn't causing any problems, but many people will wake up with a slightly puffed up face. In some cases, a red sore can develop over the forehead or chin, which could last several days.
Some patients who have lumbar decompression surgery will develop new numbness or weakness in one or both legs as a result of the operation.
Paralysis is an uncommon, but serious, complication that can occur as a result of lumbar decompression surgery.
Nerve injuries and paralysis can be caused by a number of different problems, including:
As with all types of surgery, there's a risk of dying during or after lumbar decompression surgery, although this is rare. A blood clot, a bad reaction to the anaesthetic and blood loss can all be life-threatening.
