Microdiscectomy: What is it?

Microdiscectomy is surgery to remove part or all of a bulging or damaged (herniated) disc in the spine. A herniated disc in the low back (from the first lumbar vertebra to the sacrum) is called a lumbar herniated disc. If it irritates or presses on the spinal nerves, it can cause pain and numbness in the buttock and leg.

Surgery is done to stop the pressure on the nerves. This may help with pain and numbness. And it may help you move better. It will also help prevent further damage. Some people notice that their symptoms improve very soon. But your back may feel stiff and sore for a few weeks.

A doctor or nurse will give you medicine to make you sleep. You will not feel pain during the surgery.

Your doctor makes a 2.5- to 5-centimetre (1- to 2-inch) cut in the skin over the spine. This cut is called an incision. The doctor uses a microscope (scope) and surgical tools to remove a small amount of bone and other tissues around the bulging disc. Then your doctor removes the bulging part of the disc. You will have a small scar on your back. It will fade with time.

You will be asleep for the surgery. You might go home the same day you have surgery. Or you might need to stay in the hospital or surgery centre overnight. If you work in an office, you may go back to work in a week or two. If your job requires physical labour (such as lifting or twisting), you may be able to go back to work in 4 to 8 weeks. Your doctor may also suggest physiotherapy and home exercises.

What happens on the day of surgery?

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  Follow the instructions exactly about when to stop eating and drinking. If you don't, your surgery may be cancelled.
• If your doctor has told you to take your medicines on the day of surgery, take them with only a sip of water.
• Take a bath or shower before you come in for your surgery. Do not apply lotions, perfumes, deodorants, or nail polish.
• Do not shave the surgical site yourself.
• Take off all jewellery and piercings. And take out contact lenses, if you wear them.

At the hospital or surgery centre

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  Bring a picture ID.
• The area for surgery is often marked to make sure there are no errors.
• You will be kept comfortable and safe by your anesthesia provider. You may be asleep or have medicine to relax you. And the area will be numbed if you're awake. It's often numbed even if you are asleep.
• The surgery will take about 1 to 2 hours.