Lumbar microdiscectomy

What is sciatica?

Sciatica is pain down your leg caused by pressure on a nerve where it leaves your spine. This can happen if a disc in your spine becomes worn and develops a bulge (a 'slipped disc') (see figure 1).

Lumbar microdiscectomy 

What are the benefits of surgery?

You should recover more quickly from your sciatica. You may also be less likely to get sciatica again.

Are there any alternatives to surgery?

Many people get better in time without any surgery. Treatment involves painkillers and rest, followed by an exercise programme. If you have a lot of pain, you can also have a steroid injection in your spine.

What does the operation involve?

A variety of anaesthetic techniques are possible. The operation usually takes between three-quarters of an hour and an hour.

Your surgeon will make a cut in the centre of your lower back. They will part the muscles and remove a small amount of ligament and sometimes bone to get to the disc.

Your surgeon will remove the piece of disc that is pressing on the nerve.

What complications can happen?

1. General complications of any operation

  • Pain
  • Bleeding
  • Infection in the surgical wound
  • Unsightly scarring
  • Blood clots
  • Difficulty passing urine

2. Specific complications of this operation

  • Continued pain or numbness down your leg
  • Numbness between your legs, loss of normal bowel and bladder control and, in men, problems with having an erection
  • Infection of the intervertebral disc
  • Tear of the thin membrane that covers the nerves in your spine

How soon will I recover?

You should be able to go home the following day.

It is best not to do any heavy lifting after you have had back surgery, even if that is what your job involves.

Regular exercise should help you to return to normal activities as soon as possible. Before you start exercising, you should ask a member of the healthcare team or your GP for advice.

Most people make a good recovery from surgery and are able to return to normal activities.


The common cause of sciatica is a bulge on one of the discs in your spine that presses on a nerve in your lower back. If the pain does not settle on its own, your surgeon can perform a lumbar discectomy to remove the bulge.

Paying for your operation

Lumbar laminectomy costs are covered by most medical insurance policies, but please check with your insurer first. If you are paying for your own treatment the cost of the operation will be explained and confirmed in writing when you book the operation. Ask the hospital for a quote beforehand, and ensure that this includes the surgeon’s fee, the anaesthetist’s fee and the hospital charge for your procedure.


Author: Mr Stephen Milner DM FRCS (Tr. & Orth.) and Miss Maria Cartmill FRCS (Neuro. Surg.)

Illustrations: Mr Stephen Milner DM FRCS (Tr. & Orth.)

This document is intended for information purposes only and should not replace advice that your relevant health professional would give you.

Copyright © 2008 EIDO Healthcare Limited   The operation and treatment information on this website is produced by EIDO Healthcare Ltd and is licensed by BMI Healthcare. The intellectual property rights to the information belong exclusively to EIDO Healthcare Limited. You may not copy, print out, download or otherwise reproduce any of the information other than for your personal, non-commercial use. The information should not replace advice that your relevant health professional would give you.


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