Back pain and sciatica (slipped disc)

What it is

The discs are cushions that sit between the bones of the spine. When a disc bulges or ruptures, often called a slipped or herniated disc, it can press on a nearby nerve.

Pressure on the nerves that form the sciatic nerve causes sciatica: pain that runs from the lower back or buttock down the leg, often below the knee.

How we diagnose it

• A discussion of your symptoms and an examination of strength, sensation and reflexes
• An MRI scan of the lower spine, which shows the discs and nerves
• Nerve conduction studies and EMG at the Centre when the picture is unclear

When surgery is needed

Surgery is considered when leg pain persists despite treatment, when weakness is getting worse, or in an emergency such as cauda equina syndrome.

The operation removes the piece of disc pressing on the nerve (a discectomy). At the Centre this can often be done endoscopically, through an incision of about one centimetre, using a camera and fine instruments.

Recovery

Many patients walk on the day of surgery and go home the same day or the next. Leg pain often eases quickly, while numbness can take longer to settle. Dr Mba will advise you on returning to work, driving and lifting.

All surgery carries risks, including infection, bleeding and nerve injury. Dr Mba will explain the risks and benefits that apply to you before any decision is made.