What Is Sciatica?
Sciatica is not a disease or a diagnosis in itself but rather a set of symptoms caused by compression, irritation, or inflammation of the sciatic nerve, the longest and thickest nerve in the human body. The sciatic nerve originates from the nerve roots in the lower lumbar and upper sacral spine (L4 through S3), passes through the buttock beneath the piriformis muscle, and travels down the back of each leg to the foot. When this nerve is compromised, it produces a characteristic pattern of pain that radiates from the lower back through the hip and buttock and down the leg, often extending below the knee.
The pain of sciatica can range from a mild ache to a sharp, burning sensation or excruciating discomfort. It is typically unilateral, affecting only one side of the body. The pain often worsens with prolonged sitting, coughing, sneezing, or sudden movements. Many patients also experience numbness, tingling, or weakness in the affected leg or foot.
Sciatica is extremely common, affecting up to 40 percent of people at some point in their lives. In Lahore, where many people work in sedentary occupations or engage in physically demanding labour, sciatica is a frequent cause of disability and reduced quality of life. Fortunately, most cases resolve with conservative treatment, and professional home-based physiotherapy from Hum Home Care offers a convenient and effective path to recovery.
Causes of Sciatica
Sciatica can result from any condition that compresses or irritates the sciatic nerve or its nerve roots. Understanding the underlying cause is essential for directing appropriate treatment.
Herniated Lumbar Disc
A herniated (also called slipped or prolapsed) disc is by far the most common cause of sciatica, responsible for approximately 90 percent of cases. The spinal discs sit between the vertebrae and act as shock-absorbing cushions. Each disc has a tough outer ring (annulus fibrosus) and a soft, gel-like centre (nucleus pulposus). When the outer ring weakens or tears, the inner material can bulge or rupture outward, compressing the adjacent nerve root. This most commonly occurs at the L4-L5 or L5-S1 levels of the spine.
Piriformis Syndrome
The piriformis is a small muscle located deep in the buttock. The sciatic nerve passes beneath (and in some individuals, through) this muscle. When the piriformis muscle becomes tight, inflamed, or spasms, it can compress the sciatic nerve, producing symptoms that mimic a herniated disc. Piriformis syndrome is more common in people who sit for prolonged periods, run frequently, or have anatomical variations in the nerve-muscle relationship. It is a significant cause of sciatica that is often overlooked in initial evaluations.
Spinal Stenosis
Spinal stenosis is the narrowing of the spinal canal, which can compress the nerve roots that form the sciatic nerve. It is most commonly caused by age-related degenerative changes, including the thickening of ligaments, the formation of bone spurs (osteophytes), and the bulging of discs. Spinal stenosis typically produces symptoms that worsen with standing or walking and improve with sitting or bending forward, a pattern known as neurogenic claudication.
Other Causes
- Spondylolisthesis: A condition in which one vertebra slips forward over the one below it, potentially compressing nerve roots
- Degenerative disc disease: The progressive deterioration of spinal discs that can lead to disc height loss and nerve compression
- Spinal tumours or cysts: Rare but serious causes that require prompt investigation
- Pregnancy: The growing uterus and postural changes can compress the sciatic nerve, though this usually resolves after delivery
- Diabetes: Can cause nerve damage (diabetic neuropathy) that may mimic or compound sciatic symptoms
- Trauma: Accidents, falls, or injuries that directly damage the lumbar spine or sciatic nerve
Symptoms of Sciatica
The hallmark symptom is pain that radiates from the lower back or buttock down the back or outer side of the leg. The pain may be described as shooting, burning, electric, or stabbing. Associated symptoms include:
- Numbness or a pins-and-needles sensation in the leg or foot
- Weakness in the leg or foot, making it difficult to stand, walk, or push off
- A burning or tingling sensation along the nerve pathway
- Pain that worsens with coughing, sneezing, or straining
- Pain that is aggravated by prolonged sitting or standing and relieved by lying down or walking
- Reduced reflexes in the affected leg (detectable during clinical examination)
- In severe cases, loss of bowel or bladder control (cauda equina syndrome, a medical emergency)
Diagnosis of Sciatica
Diagnosis begins with a thorough clinical evaluation, including a detailed history of the pain (onset, location, character, aggravating and relieving factors) and a physical examination that may include straight-leg-raise testing (Lasègue's sign), neurological assessment of reflexes, muscle strength, and sensation, and assessment of gait and posture.
Imaging studies are used to confirm the underlying cause and guide treatment decisions:
- X-ray: Can reveal spinal alignment, disc height loss, and bone spurs. Portable X-ray services available through Hum Home Care allow initial assessment at home.
- MRI: The gold standard for visualising soft tissues, including herniated discs, nerve root compression, and spinal stenosis. MRI provides detailed images that are essential for surgical planning.
- CT scan: Used when MRI is contraindicated or to better visualise bony structures.
- EMG (electromyography): Measures the electrical activity of muscles and can help confirm nerve damage and localise the level of compression.
Treatment Options
The vast majority of sciatica cases resolve with conservative, non-surgical treatment. A stepwise approach is typically recommended, beginning with the least invasive interventions.
Medications
- Non-steroidal anti-inflammatory drugs (NSAIDs): Ibuprofen, naproxen, and diclofenac reduce inflammation and relieve pain. These are typically first-line medications.
- Acetaminophen (paracetamol): May be used for pain relief, though evidence suggests it is less effective than NSAIDs for sciatica.
- Muscle relaxants: Cyclobenzaprine or methocarbamol may help relieve muscle spasms associated with sciatica.
- Oral corticosteroids: A short course of prednisone may be prescribed to reduce acute inflammation.
- Neuropathic pain medications: Gabapentin or pregabalin may be effective for nerve-related pain, particularly when burning or tingling sensations predominate.
- Epidural steroid injections: For severe or persistent pain, corticosteroids can be injected directly into the epidural space around the affected nerve root under imaging guidance. This provides significant pain relief for many patients.
Physiotherapy and Home Exercise
Physiotherapy is the cornerstone of sciatica rehabilitation. A structured programme delivered by a qualified physiotherapist addresses pain, improves mobility, strengthens the supporting musculature, and prevents recurrence. Key components include:
- Nerve gliding (flossing) exercises: Gentle movements that mobilise the sciatic nerve along its pathway, reducing adhesions and improving nerve mobility
- Core strengthening: Exercises targeting the abdominal and back muscles that stabilise the spine, reducing pressure on the nerve roots
- Stretching: Targeted stretches for the lower back, hamstrings, piriformis, and hip flexors that relieve tension on the sciatic nerve
- Postural correction: Education and exercises to improve sitting, standing, and lifting mechanics
- Aerobic exercise: Low-impact activities such as walking, swimming, or stationary cycling promote blood flow and healing without aggravating symptoms
Hum Home Care provides physiotherapy services delivered at home by experienced therapists across Lahore. Home-based treatment eliminates the need to travel in pain and allows the therapist to assess the patient's home environment for ergonomic factors that may be contributing to the condition.
Exercises to Avoid with Sciatica
While exercise is beneficial for recovery, certain movements can aggravate sciatic symptoms and should be avoided, especially during the acute phase:
- Heavy lifting: Any activity that involves significant load on the spine, including deadlifts and weighted squats
- Sudden twisting movements: Sports such as golf, tennis, and cricket that involve rapid rotational forces on the spine
- High-impact activities: Running, jumping, and vigorous aerobics that jar the spine
- Sit-ups and crunches: These flex the lumbar spine and can increase pressure on the nerve roots
- Leg presses and heavy hamstring curls: Gym exercises that load the lower back
- Bending forward with straight legs: Touching toes with locked knees compresses the nerve
- Prolonged sitting: Especially on soft, unsupportive surfaces that increase pressure on the lumbar discs
Always consult a physiotherapist before beginning or resuming any exercise programme. A trained professional can identify which movements are safe and beneficial for your specific condition.
When Surgery Is Needed
Surgery for sciatica is reserved for specific situations where conservative treatment has failed or when there is a risk of permanent nerve damage. Surgical indications include:
- Progressive neurological deficit: Worsening weakness in the leg or foot, particularly foot drop (inability to dorsiflex the foot), which indicates significant nerve compression
- Cauda equina syndrome: A rare but catastrophic condition characterised by loss of bowel and/or bladder control, saddle anaesthesia (numbness in the groin and perineal region), and severe bilateral leg weakness. This is a surgical emergency requiring immediate decompression.
- Failure of conservative treatment: When pain persists beyond 6 to 12 weeks despite adequate physiotherapy, medication, and injections
- Severe, intractable pain: When pain is intolerable and significantly impairs quality of life despite maximal conservative management
Common surgical procedures include microdiscectomy (removal of the herniated disc material) and laminectomy (removal of part of the vertebra to decompress the nerve). These procedures are performed at major hospitals in Lahore and carry a high success rate when patient selection is appropriate.
Emergency Signs Requiring Immediate Attention
Seek emergency medical care immediately if you experience any of the following:
- Sudden loss of bladder or bowel control
- Numbness in the groin, genital area, or inner thighs (saddle anaesthesia)
- Progressive weakness in both legs
- Severe, unrelenting pain that does not respond to medication
- Signs of infection such as fever along with back pain
- Recent significant trauma with new-onset sciatic symptoms
These symptoms may indicate cauda equina syndrome, which requires emergency surgical decompression to prevent permanent paralysis and loss of bowel and bladder function. In Lahore, call 03250600666 for urgent assistance or message us on WhatsApp.
Prevention and Daily Management
Preventing sciatica recurrence involves addressing the underlying risk factors and maintaining a spine-healthy lifestyle:
- Maintain good posture: Use ergonomic chairs with lumbar support, avoid slouching, and take regular breaks from sitting (every 30 to 45 minutes) to stand, stretch, and walk
- Exercise regularly: A consistent programme of core strengthening, flexibility training, and low-impact aerobic exercise supports spinal health
- Practise safe lifting: Bend at the knees, keep the load close to the body, and avoid twisting while lifting
- Maintain a healthy weight: Excess body weight increases stress on the lumbar spine
- Stay physically active: Sedentary behaviour is a major risk factor. Even light regular activity helps maintain disc health and muscle tone
- Choose a supportive mattress: A medium-firm mattress that supports the natural curve of the spine can reduce morning stiffness and pain
- Manage stress: Chronic stress contributes to muscle tension in the back and hips, which can exacerbate sciatic symptoms
- Stay hydrated: Adequate water intake helps maintain the hydration and elasticity of spinal discs
Home Physiotherapy for Sciatica
Receiving physiotherapy at home offers significant advantages for sciatica patients, particularly those in acute pain who find travelling to a clinic difficult or impossible. A home physiotherapist from Hum Home Care can assess the patient in their own environment, identify ergonomic and lifestyle factors contributing to the condition, and deliver a personalised treatment programme without the patient needing to leave home.
A typical home physiotherapy session for sciatica includes a thorough assessment of posture, range of motion, muscle strength, and nerve mobility. The therapist then guides the patient through targeted exercises, provides hands-on manual therapy to release muscle tension and improve joint mobility, educates on proper body mechanics for daily activities, and progressively advances the exercise programme as symptoms improve. Regular sessions, typically two to three times per week initially, ensure consistent progress and early identification of any worsening symptoms. Medicine delivery services ensure that prescribed pain medications and muscle relaxants reach the patient promptly, supporting the overall treatment plan.
