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A lumbar discectomy is a procedure where the surgeon removes the part of a lower back disc that’s irritating a nearby nerve. This nerve pressure often results in discomfort, tingling, or muscle weakness in the back or legs.

The procedure is done under general anaesthesia. A small incision is made in the back, and the surgeon gently moves soft tissues aside to reach the spine. The damaged or herniated section of the disc is then carefully taken out to ease nerve pressure.

This surgery is usually recommended when symptoms don’t improve with rest, medications, or physical therapy. It is effective in relieving leg pain (sciatica) and improving mobility.

Recovery is often quick, especially if a minimally invasive method is used. Most patients can start walking within a day and return to daily activities within a few weeks, depending on their progress.

Lumbar discectomy is a surgical procedure performed to remove a portion of a herniated or damaged disc in the lower spine that is pressing on nearby spinal nerves. It is commonly used to treat sciatica, which causes pain, numbness, or weakness radiating from the lower back into the legs. The goal is to relieve nerve compression, alleviate pain, improve mobility, and prevent long-term nerve damage by removing the disc material responsible for the pressure.

Consult a spine specialist if you experience:

Persistent lower back pain
Sharp, radiating leg pain (especially down one leg)
Numbness, tingling, or weakness in the leg or foot
Difficulty standing, walking, or performing daily activities
Loss of bowel or bladder control (a medical emergency)

If these symptoms do not improve with non-surgical treatments like physiotherapy, medications, or spinal injections, a lumbar discectomy may be considered.

Preparation for lumbar discectomy includes:

Physical and neurological examination
Imaging studies, such asan MRI or CT scan, to confirm disc herniation and its location
Review of current medications, especially blood thinners, which may need to be temporarily stopped
Fasting for 6–8 hours before the procedure
Pre-surgical evaluation by your primary physician or anesthesiologist
Discuss allergies, surgical expectations, and potential risks with your surgeon

Patients should also plan for transportation and home support during the early stages of recovery.

The procedure is done under general anesthesia and involves the following steps:

A small incision is made in the lower back over the affected disc.
Muscles and tissues are gently moved aside to expose the vertebra.
The surgeon removes a portion of the herniated disc that is compressing the nerve. In some cases, a small portion of bone (lamina) may also be removed to access the disc.
The incision is closed with sutures or surgical glue.

Microdiscectomy, a minimally invasive variation, uses specialised instruments and a microscope for enhanced precision and a faster recovery.

A lumbar discectomy typically takes 45 minutes to 1.5 hours, depending on complexity. Most patients are discharged the same day or after a short overnight hospital stay.

While generally safe, lumbar discectomy carries risks such as:

Infection
Bleeding
Nerve injury
Spinal fluid leak
Recurrent disc herniation
Deep vein thrombosis (DVT)
Reaction to anaesthesia
In rare cases, persistent or worsening symptoms

These risks are minimised when performed by experienced spinal surgeons.

Rapid and often significant relief from leg pain (sciatica)
Improved mobility and physical activity
Minimally invasive techniques lead to quicker recovery
Short hospital stay and early return to everyday life
Reduced need for long-term pain medications
Prevention of permanent nerve damage

Lumbar discectomy is highly effective, particularly when a herniated disc is identified as the cause of symptoms.

Patients are usually up and walking the same day
Mild back or leg discomfort is normal and managed with pain medication
Light activities can resume within 1 to 2 weeks
Avoid bending, twisting, or lifting for at least 4–6 weeks
Physical therapy may be advised to strengthen back muscles and improve posture
Most people return to work in 2–6 weeks, depending on job type
Follow-up appointments are essential to monitor recovery and detect recurrence

Lumbar discectomy has a high success rate, with 80–90% of patients experiencing significant relief from leg pain and improved function. Success is highest in patients with sciatica caused by a single-level herniated disc and who follow post-operative care instructions correctly.