Sciatica and disc bulge - Scopy Specialist

Sciatica refers to pain that starts in the lower back and travels down the buttock and leg, following the course of the sciatic nerve. The pain may feel sharp, burning, shooting or electric-like, and in many people, it reaches the calf or foot.

The most common cause of sciatica in adults is a disc bulge (slipped disc) in the lower back, pressing on a nerve root.

What Is a Disc Bulge?

Between the bones of the spine are soft cushions called intervertebral discs, which allow smooth movement and act as shock absorbers.

A disc bulge occurs when the inner soft part of a disc pushes outward and irritates or compresses the nearby nerve. If the nerve root involved is part of the sciatic nerve, leg pain and neurological symptoms can follow.

Why Do Disc Bulges Happen?

A disc prolapse can develop suddenly or gradually due to:

Incorrect lifting of heavy weights
Sudden twisting injury
Long hours of sitting (poor posture)
Age-related disc wear
Sedentary lifestyle or lack of exercise
Repetitive bending/manual labour
Obesity
Smoking (affects disc nutrition)

Disc prolapse can also occur alongside spinal stenosis or spondylolisthesis, but these are less common.

Symptoms of Sciatica and Disc Bulge

People may experience:

Low back pain
Pain radiating down one leg
Burning/tingling/numbness in the leg or foot
Weakness or heaviness of the leg in severe cases
Worsening of pain while coughing, sneezing, bending or sitting for long periods
Difficulty standing upright or walking during flare-ups

Symptoms are usually on one side, but both legs may be affected in rare cases.

Red Flag Symptoms (Emergency)

Seek urgent medical attention if there is:

Loss of bladder or bowel control
Severe leg weakness
Numbness in the inner thighs/genital area
Sudden, unbearable back pain after major trauma

These symptoms may indicate cauda equina syndrome or severe nerve compression.

Diagnosis

Diagnosis is based on history, examination and spine imaging.

MRI of the lumbar spine is the best test to confirm disc prolapse and nerve compression.
In chronic (long-standing) disc prolapse, ossification/calcification of the disc can occur. In such cases, a CT scan may be done to detect hardening of the disc.

Clinical tests such as SLR (Straight Leg Raise) and neurological examination help assess severity and nerve involvement.

Treatment Options

Most patients with disc bulge and sciatica improve without surgery.

1. Conservative (Non-Surgical) Management

First-line treatment typically includes:

Rest and avoidance of painful activities
Painkillers and anti-inflammatory medications
Short courses of steroids when indicated
Physiotherapy focusing on spine mobility and core strengthening

These measures reduce inflammation, ease nerve irritation and improve function.

2. Injection-Based Pain Relief

If pain remains significant despite conservative treatment, steroid injections around the inflamed nerves may be recommended. These include:

These procedures help reduce inflammation around the nerve and allow more effective physiotherapy.

3. When Surgery Is Required

Surgery is considered if:

Pain is severe and persistent
There is neurological deficit (e.g., weakness, foot drop)
Red-flag symptoms are present
MRI shows major disc compression on nerve

Surgical options include:

Endoscopic discectomy
- UBE (Unilateral Biportal Endoscopy)
- IELD
- PELD (Percutaneous Endoscopic Lumbar Discectomy)
Microscopic discectomy
Open discectomy

All these procedures aim to remove the part of the disc pressing on the nerve while preserving normal structures and enabling quicker recovery.

At our centre, we perform all the above procedures regularly.
We are currently the only facility in Meerut offering endoscopic discectomy, the most advanced and minimally invasive surgical option available today.

Role of Exercises

Once acute pain settles, exercises are one of the best tools to prevent recurrence.
Physiotherapy usually involves:

Core muscle strengthening
Back extensor exercises
Stretching of hamstrings and hip flexors
Posture and ergonomic correction

Exercises are best learned under supervision and then done consistently at home.

Long-Term Outlook

Most people recover well with the right treatment approach. Long-term spinal health depends on:

Maintaining healthy body weight
Avoiding prolonged sitting/slouching
Staying physically active
Using proper lifting techniques
Not smoking (improves disc healing)

Key Message

Sciatica and disc bulge are common problems, but in most cases they are treatable without surgery. When required, modern minimally invasive spine procedures — including endoscopic discectomy — provide fast recovery, small incisions and excellent pain relief.