Understanding Low Back Pain: Causes, Diagnosis & Management

Low back pain (LBP) is one of the most prevalent musculoskeletal conditions affecting people worldwide. It is a leading cause of disability, loss of productivity, and healthcare costs. According to the World Health Organisation (WHO), nearly 80% of individuals experience LBP at some point in their lives. The condition affects people of all ages but is most common in adults aged 30-60. Risk factors for developing LBP include poor posture, sedentary lifestyles, obesity, heavy lifting, and underlying spinal conditions such as degenerative disc disease, osteoarthritis or other soft tissue abnormalities. 

In recent years, low back pain management and classification have shifted in their application, now primarily being referred to as ‘non-specific low back pain’. This shift in classification is based on the recognition that most cases of LBP are multifaceted and complex. There can be many factors including physical, social and even psychological considerations that can modify one’s experience of LBP. Many individuals presenting with LBP lack a definitive pathological cause such as disc abnormalities, nerve compression or fracture. As such, emphasis has been placed towards holistic conservative care, orientated around a biopsychosocial approach. 

Low Back Pain Grading Scale

LBP is graded on a scale depending on presenting signs and symptoms. 

• Acute (0-6 weeks): Often caused by minor injuries, muscle strains, or ligament sprains.

• Subacute (6-12 weeks): Pain that persists beyond initial healing but has not yet become chronic.
• Chronic (12+ weeks): Long-lasting pain that may result from structural issues, nerve damage, or chronic conditions.

Early assessment and intervention ensures optimal outcomes and will modify the time frame of LBP recovery. 

Signs and Symptoms

• Dull or sharp pain localised to the lower back
• Stiffness and limited range of motion
• Radiating pain to the buttocks or legs
• Numbness, tingling, or weakness in the legs
• Worsening pain with prolonged sitting, standing, or lifting
• Relief with rest or specific movements (depending on the cause)

In severe cases, some symptoms indicate substantial low back compromise and should be consulted by a medical professional or urgent care facility promptly. These may indicate significant nerve compression or instability. These include: 

• Bowel or bladder abnormalities such as changes to frequency, urgency and incontinence. 
• Saddle anaesthesia – numbness/tingling in the genital region 
• Significant unexplained pain at night 
• Localised low back pain associated with infection signs such as fever and hot/cold flushes
• Significant lower limb muscle weakness 

Imaging Options

Imaging is not recommended initially for individuals suffering from low back pain for several reasons (unless specific red flag signs and symptoms are present):

• Studies show that 90% of cases are non-specific and resolve within 6-12 weeks of conservative care involving physical therapy, modified rest and graded exercise prescription. 
• Imaging findings do not typically change initial management plans. 
• Often, findings on imaging are not the pain-producing structure, leading to overdiagnosis and unnecessary interventions. 

However, for non-responsive, persistent or severe cases where structural abnormalities and/or neurological involvement are suspected, imaging may be indicated and will be organised by your treating practitioner. Imaging modalities commonly used:

• X-ray: Useful for visualising bony or structural abnormalities. Low radiation dose. 
• MRI (Magnetic Resonance Imaging): Gold standard for visualising soft tissue structures, including discs, nerves, tendons and ligaments.
• CT Scan (Computed Tomography): Provides detailed images of bone structures, often used for detecting spinal stenosis or fractures. Notable radiation exposure is involved. 
• Electromyography (EMG): Assesses nerve function and is used when nerve damage is suspected.

Conservative Management: Physiotherapy and Chiropractic Care

As aforementioned, a trial of conservative care in the initial stages of low back pain is the recommended course of treatment. The tailored treatment plan may include:

• Manual therapy: Soft tissue massage, joint mobilisation, and stretching.
• Exercise therapy: application of individualised exercises and rehabilitation according to findings. Emphasis on movement, graded exercise and early return to activity. 
• Postural training: Ergonomic advice and movement re-education.
• Modalities: cold laser therapy, dry needling, and cupping are a useful adjunct to low back pain management. 

• Spinal manipulation: using adjustments to correct range of motion deficits and reduce pain sensitivity. 
• Mobilisation techniques: Restoring movement in restricted joints.

Both physiotherapy and chiropractic care are effective modalities for managing non-specific LBP. 

Surgical Management

In most cases, individuals find great resolution through conservative care. However, surgery may be indicated and is typically reserved for cases where conservative treatment fails or there is significant progressive neurological impairment. Common surgical procedures include:

• Discectomy: Removal of a herniated disc pressing on nerves.
• Spinal fusion: Fusing two or more vertebrae to stabilise the spine.
• Laminectomy: Removing part of the vertebrae to relieve pressure on nerves (common for spinal stenosis).

Surgical intervention carries risks and should be considered carefully after exhausting non-surgical options. Recovery times vary, and post-operative rehabilitation is crucial for optimal outcomes.

Secure The Treatment You Need With Spinal & Sports Care!

Low back pain is a widespread condition that can significantly impact daily life. While most cases are resolved with conservative treatment, understanding the underlying causes, grading scales, and management options is crucial. A personalised approach involving physiotherapy, chiropractic care, or, in severe cases, surgical intervention can help individuals regain function and improve their quality of life.

If you’re experiencing persistent or severe low back pain, consult a healthcare professional at Spinal & Sports Care to determine the best treatment plan for your condition. Reach out to our team today for a personalised treatment plan tailored to your needs.