Lumbar Decompression Surgery

Overview of Lumbar Decompression Surgery in India

Imagine having a subtle ache in your lower back every morning or experiencing excruciating pain that makes it difficult to walk across the room. Millions of people around the world are all too familiar with this battle. The World Health Organisation (WHO) states that low back pain is the primary cause of disability globally, impacting mental health, mobility, and productivity.

While many patients benefit from medicine, physical therapy, or lifestyle modifications, some individuals still have problems even after receiving conservative care for months. Lumbar decompression surgery is a medical treatment that can offer long-lasting relief for these people. 

What Is Lumbar Decompression?

The lumbar area, often known as the lower back or spine, is made up of five bones. Lumbar discomfort may result from compression of the nerves in this area. The patient is unable to endure the severe pain and numbness brought on by this nerve compression. In order to lessen the symptoms of nerve impingement, surgery is performed to decompress the impinging nerves by removing a part of the lamina (a bony lid for the spinal canal that holds the nerves) on one side. 

Types of Lumbar Decompression Surgery:

Only in cases where non-surgical therapeutic methods fail is decompression surgery advised. While some of them don't hurt, some do. The different decompression operations consist of:

Laminectomy - The entire lamina and the ligaments that protect the spinal cord and nerves are removed during a laminectomy. The nerves on both sides of the spinal cord are released as a result:

Laminotomy: To relieve nerve compression on one side of the spinal cord, a tiny section of the lamina and ligaments is removed. 

Foraminotomy: When a damaged disc is pressing against a nerve in the foramen—a hole or passageway through which the spinal nerves pass—this procedure is called a foraminotomy. The bone surrounding the foramen is removed during the surgery.

Laminoplasty: This treatment is typically carried out in the neck area. In this case, only one side of the lamina is cut in order to maximise the amount of room inside the spinal canal.

Discectomy - Removing the disc that is pressing against the nerves is known as a discectomy. 

Spinal fusion - When there is excessive movement, two vertebrae—the bones that make up the spinal column—can be fused together. A synthetic bone or another bone from a different area of the body is added to complete the fusion. This bone lessens the strain on the nerves by joining the two vertebrae.

Procedure:

All information on the procedure's goals, advantages, and potential hazards will be given by the physician. Lastly, a consent form authorising the surgery is signed by the patient.

Before beginning surgical treatments, patients are encouraged to drink some water and refrain from solid food for around eight hours.

To prevent bleeding difficulties, patients on anticoagulant therapy or on blood thinners (Aspirin) are advised to stop taking their drugs one week prior to surgery.

To lower the chance of difficulties, the doctor is informed of any known allergic responses to anaesthetics and other drugs.

Avoiding high-risk behaviours like drinking alcohol and smoking is advised. 

How Is Lumbar Decompression Surgery Performed?

The procedure is carried out by a skilled orthopaedic or neurosurgeon. The entire procedure takes three to four hours.

The patient is sedated with anaesthesia, then povidone-iodine (a skin disinfectant) is used to prepare the surgical site.

The lamina is located after a cut (incision) is made on the lower back.

Depending on the degree of nerve impingement, a laminectomy or laminotomy is performed by removing all or only a portion of the bony lamina and the ligament once the lamina has been exposed. 

The dura mater, the spinal cord's protective covering, is found and slightly retracted to remove the ligament and any bony overgrowths once the lamina has been removed.

After that, a foraminotomy is performed to make room inside the nerve foramen.

A discectomy is also performed if pain is due to disc deterioration.

Finally, a spinal fusion is carried out with the aid of a bone graft (synthetic or bone from another region of the body, such as the hip bone) if several vertebrae are injured and removed during this treatment. Screws and plates are used to stabilise the bone graft in place. 

The procedure site is sealed with sutures.

A laparoscope, a fibre-optic device with a camera connected at one end that helps see the operation site from the outside, is occasionally used to do keyhole surgery. Compared to the typical operation with large incisions, this procedure is a little more difficult. However, recuperation from the procedure is quicker, and there is no pain. The doctor then determines the best course of action for a successful course of treatment.