Lumbosacral plexus injury


We relieve the pain from lumbosacral plexopathy at our specialist Peripheral Nerve Unit at The Wellington Hospital

Enquiries & Appointments

Spinal and peripheral nerve

What is the lumbosacral plexus?

The lumbosacral plexus is a network of nerve fibres supplying the muscles of your lower limbs. It's located in your lower back, and forks into branches in front of the hip joint and down your legs.

Damage, at birth or due to a trauma, to the lumbosacral plexus causes pain and weakness in the lower back. This can feel like burning, cramping and tingling.

Need to know

There are several causes of lumbosacral plexus injury. These include forceful impact such as an accident, prolonged labour in childbirth, cancer, diabetes and autoimmune disease. Some cardiac procedures may also cause nerve damage.

The main symptoms of lumbosacral plexus injuries are:

  • Pain in the low back and buttocks, spreading down the leg
  • Sensory changes to the top of the foot
  • Weakness in the outer thigh muscles
  • Deep pelvic pain which spreads down the front of the thigh
  • In diabetics, symptoms start in the thigh and hip, notably pain and extreme weakness.

Your consultant will discuss your symptoms with you and help make a diagnosis. They will ask you about your medical history (whether you're a person with diabetes for example) and whether you've experienced any recent trauma to the pelvis.

They may order an MRI scan or CT scan to locate where the nerve fibres are being compressed. They may also want to rule out injuries with similar symptoms. MRI scans and CT scans should be considered if a structural mass is suspected in the pelvic region.

Lumbosacral plexopathy is treated according to the cause. It can sometimes be managed through a mix of physiotherapy and painkillers. Corticosteroids often help where diabetes is the cause.

Nerve blocking injections, delivered into the lumbosacral plexus by ultrasound, can also be an effective treatment. These numb the injured nerves, stopping pain reaching the limb.

Finally, surgery can also help. Damaged nerves are reconnected using nerve grafts taken from other parts of the body. The nerve acts as a tube or cable, guiding the nerve fibres until they grow across the gap.


Mr Marco Sinisi - Peripheral Nerve Specialist

At HCA Healthcare UK, we work with leading consultants to enable access to the the latest techniques and treatment.

Mr Marco Sinisi is our lead consultant for Peripheral Nerve Injuries based at The Wellington Hospital. Mr Sinisi has a comprehensive knowledge of nerve injuries and has experience in a wide range of nerve problems from trauma through to sports injuries. He is experienced in managing complex nerve conditions as well as performing complex nerve operations. 

Our Lumbosacral plexus injury locations

Institute of Sport Exercise and Health (ISEH)

Institute of Sport Exercise and Health (ISEH)

170 Tottenham Court Road W1T 7HA London
The Harley Street Clinic

The Harley Street Clinic

35 Weymouth Street W1G 8BJ London
The Portland Hospital

The Portland Hospital

205-209 Great Portland Street W1W 5AH London
The Princess Grace Hospital

The Princess Grace Hospital

42-52 Nottingham Place W1U 5NY London
The Lister Hospital

The Lister Hospital

Chelsea Bridge Road, SW1W 8RH London
The Shard Outpatients

The Shard Outpatients

The Shard, 32 St Thomas Street SE1 9BS London

Patient stories

This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.