Anatomy of the Intervertebral Disc
The prolapsed lumbar intervertebral disc (also referred to as slipped disc, sciatica, or disc prolapse) is a painful condition where pain starts in the lower back or buttocks and travels like a wave towards the affected lower leg down to the heel. There are 23 functional intervertebral discs, each disc connecting adjacent vertebrae. A healthy disc acts as a shock-absorbing spring consisting of an outer tough fibrous ring (Annulus) and a central soft, gelatinous core (Nucleus Pulposus).
Healthy Disc Structure (Annulus surrounding central Nucleus)
Ruptured nucleus pulposus through annulus cracks causing nerve compression
An intervertebral disc working like a shock-absorbing spring
Causes, Symptoms & Diagnosis
Constant wear and tear, age-related degeneration, or sudden acute trauma (lifting weights, jerks, bending forward) creates cracks in the annulus. The nucleus pulposus herniates through these cracks, causing mechanical pressure on the spinal cord or nerves.
Low backache (ranging from mild to severe) with radiating leg pain, tingling, and numbness (sciatica) down to the toes. Patients may experience muscle spasms, localized tenderness, leg muscle wasting, and neurogenic claudication (leg pain/heaviness when walking, relieved by sitting).
First Line of Management (Acute Slip Disc)
Severe acute symptoms are managed conservatively first. More than 90% of patients achieve relief through these structured steps:
- Total Bed Rest: Enforced for 3 to 5 days to reduce loading on the disc.
- Cold Fomentation: Applying ice packs to the back to relieve initial inflammation.
- NSAID Medications: Anti-inflammatory drugs (Paracetamol, Ibuprofen, Diclofenac, Naproxen, Aceclofenac) to relieve severe pain.
- Steroids: Low-dose steroid cycles in select cases to address nerve root inflammation.
- Local Liniments: Counterirritant creams applied at the site for symptomatic comfort.
- Mild Sedation: Night-time sedation (Alprazolam, Clonazepam) to help patients sleep comfortably.
Rehabilitation & Chronic Care
Once acute symptoms subside, mobilization begins under professional physiotherapist guidance to prevent recurrences:
- Core Strengthening: Stretching and strengthening abdominal and lumbar core muscle groups.
- Lumbar Traction: Static traction up to 1/3 of body weight to relieve mechanical nerve pressure.
- Interferential Therapy (IFT): Low-frequency electrical stimulation to boost circulation and relieve pain.
- Spinal Manipulation: Done to realign joints; must be performed with caution to avoid additional disc damage.
- Hot/Cold Contrast & Braces: Hot fomentation for spasms, and a lumbosacral belt to stabilize muscles (used for no more than a few weeks).
Diagnostic Investigations
If pain remains disabling despite conservative therapies, diagnostic imaging is performed to assess surgical paths:
Lumbosacral Spine X-Ray
Suggests disc pathology by showing reduction in disc space height and formation of bony osteophytes.
Spine MRI (Gold Standard)
Displays disc health, rupture, and state of pinched nerves along with other surrounding pathologies.
Dr. Dilip Kiyawat
Consultant Neuro and Spine Surgeon
Jehangir Hospital, Pune | Mob: +91 9822046043
Tailored Spine & Pain Management Care
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