Lumbar sprain

Did you "throw out" your back, and the pain is preventing you from moving normally? It's frustrating, but rest assured: a lumbar sprain is a common injury that heals well with proper care. This injury affects the ligaments in your lower back, which are the tissues connecting your vertebrae. It causes pain and stiffness.

In Quebec, this is often called a "tour de rein" (literally "kidney twist") or lumbago. A lumbar sprain is one of the frequent causes of acute lower back pain in active adults. To understand how this condition fits into the broader context of lower back pain and its various manifestations, consult our complete guide to lower back pain.

Here's the good news: a lumbar sprain heals well within 4-8 weeks with proper care.¹ Physiotherapy plays a central role in recovery.² It creates the best conditions for your body to heal naturally, restore movement, and prevent new injuries through personalized, gradual rehabilitation.

What is a lumbar sprain?

A lumbar sprain is an injury to the ligaments that connect the vertebrae in your lower back. It happens when these fibrous tissues are stressed beyond their usual capacity. This causes pain, muscle spasms, and limited movement.

A lumbar sprain affects the ligaments in the lumbar region. This region includes the five vertebrae located between your ribs and your pelvis. Ligaments are bands of tissue that stabilize your joints and limit excessive movement.

During a lumbar sprain, these structures experience stress that exceeds their normal capacity. This can cause tissue irritation or small micro-tears in the fibers, much like a scratch on the skin. These injuries are benign and heal naturally.

Sprain vs. Muscle Strain

It's important to distinguish between a lumbar sprain and a muscle strain. A sprain affects the ligaments between the vertebrae. A strain affects the muscles along your spine, such as the erector spinae. Both cause lower back pain and stiffness.

However, this difference influences healing. Ligaments have fewer blood vessels than muscles, which means they heal a bit more slowly. The good news? In both cases, the vast majority of people recover completely.

Other lumbar conditions include a lumbar disc herniation. This is different from a sprain. In a herniation, the disc between the vertebrae is affected, rather than the supporting ligaments.

What causes a lumbar sprain?

Lumbar sprains generally occur after sudden movements, improper lifting techniques, falls, or repetitive stress on the lower back. The risk increases when your abdominal muscles are weak, you have poor posture, or you don't warm up before physical activity.

Acute Trauma

Acute trauma is the most frequent cause of lumbar sprains:

• An awkward movement during a rotation combined with flexion overstresses your ligaments.
• Car accidents create significant forces on your lumbar ligaments (acceleration-deceleration forces).
• Falls, especially with an asymmetrical landing or a twist, create sudden loads.
• Lifting heavy loads with poor technique exposes your ligaments to maximum forces.

Repetitive Stress

Repetitive stress is a less obvious but important cause. Repetitive movements involving rotation or flexion-extension can gradually weaken your ligaments, even with small ranges of motion. This tissue fatigue explains why you often "throw out" your back during a simple, everyday movement.

For example, if you spend all day moving furniture, your lower back structures accumulate fatigue, which reduces their resistance. The next day, you might bend down to pick up a pencil, and this simple movement could be enough to cause an injury.

Risk factors

Several factors increase the risk of a lumbar sprain:

What are the main symptoms of a lumbar sprain?

Symptoms of a lumbar sprain include localized lower back pain that worsens with movement, muscle spasms, stiffness (especially in the morning), and difficulty standing upright. The pain may radiate to the buttocks. However, unlike sciatica, it generally does not extend below the knees.

Pain

Pain is the main symptom of a lumbar sprain. It manifests as a sharp or throbbing sensation in your lower back. The intensity increases when you move and worsens during flexion, extension, rotation, or lateral bending movements.

Prolonged static positions gradually increase discomfort, whether you are sitting or standing. Sneezing or coughing triggers a sudden painful worsening.

Muscle Spasms

Muscle spasms are an automatic protective response to your ligament injury. It's as if your muscles contract on their own to immobilize the injured area. The erector spinae muscles, quadratus lumborum, and multifidus contract continuously, creating a stiffness you can feel on each side of your spine.

Stiffness

Lower back stiffness and loss of range of motion characterize a sprain from the very first hours. This stiffness results from several factors: local inflammation, muscle spasms, and fear of movement. You often report significant difficulty putting on your shoes, getting up from a chair, or getting out of bed in the morning.

How does your pain behave?

Your pain might worsen when bending forward (sitting, leaning) or extending your back (standing, walking). This distinction directly guides your treatment and the positions that offer relief. To understand your specific directional pattern in detail and find suitable exercises, refer to our complete guide on directional preferences.

Differentiating from Radicular Pain (Nerve Pain)

It's crucial to distinguish a sprain from radicular pain (nerve pain). A sprain causes localized lower back pain that might spread into your buttocks or upper thighs, but it doesn't go below the knee. The absence of numbness, tingling, muscle weakness, and changes in reflexes helps differentiate a sprain from nerve compressions.

Typical Symptom Progression

About 50% of lower back sprain episodes resolve within 1 to 2 weeks. 90% show favorable improvement within 6 to 12 weeks, with or without treatment.

How is a lumbar sprain diagnosed?

Diagnosing a lower back sprain primarily relies on a detailed history and physical examination. This includes evaluating your movements, palpating (gently feeling) to identify sensitive areas, and performing specific orthopedic tests to rule out other conditions.

Physical examination

The physical examination includes several components:

• Postural Observation: Often reveals a sideways deviation of the trunk, a loss of the normal lumbar curve, or an asymmetrical pelvic position.
• Palpation: Identifies areas of maximum tenderness, excessive muscle tension, and potential deformities.
• Range of Motion: Documents limited movement directions in all planes (bending forward, extending backward, side bending, rotation).
• Neurodynamic Tests: The Straight Leg Raise (Lasègue's) test helps rule out a significant nerve root component.

Specific Clinical Tests

Specific orthopedic tests help differentiate a sprain from other conditions. Segmental stability tests assess for abnormal joint looseness. Joint compression and distraction maneuvers reproduce your pain by stressing the ligaments.

When is Imaging Indicated?

Medical imaging is not necessary in the vast majority of lower back sprain cases. X-rays only show bone structures and do not detect ligament injuries.

An MRI is justified when:

• Your symptoms persist beyond 6 weeks despite appropriate treatment
• Neurological red flags are present (progressive muscle weakness, saddle anesthesia, bowel or bladder dysfunction)
• You have a history of cancer
• Unexplained fever accompanies your lower back pain

When a nerve is involved, the pain behaves differently. Lumbar radiculopathy explains how to distinguish local ligament pain from nerve pain that travels down the leg.

How does physiotherapy effectively treat a lumbar sprain?

Physiotherapy treatment for a lower back sprain includes manual therapy to restore joint mobility, progressive exercises to strengthen your supporting muscles, pain management techniques, and education on proper movement patterns.

Treatment Phases

Therapeutic Modalities

The therapeutic methods used vary according to your individual needs:

• Heat Therapy: Improves tissue flexibility, reduces muscle spasms, and increases local blood flow.
• Electrotherapy (TENS, Interferential): Helps manage pain through nerve stimulation.
• Joint Mobilizations and Manipulations: Restore movement in specific spinal segments and reduce protective muscle spasms.

The Importance of Active Treatments

Research shows that active physiotherapy leads to better long-term results than passive approaches. Active therapeutic exercises create lasting changes: increased muscle strength, improved motor control, decreased nervous system sensitivity, and increased confidence.

Progressing towards your independence is the ultimate goal. Prolonged reliance on passive interventions is linked to less favorable outcomes and an increased risk of chronic pain.

Does Physiotherapy Work for Lumbar Sprains?

Physiotherapy is recognized as an effective treatment for lumbar sprains, with results supported by scientific research.³

Studies show an 80-90% success rate for treating lumbar sprains with physiotherapy.⁴ The combination of therapeutic exercises, manual therapy, and education has proven particularly effective in reducing pain and improving function.⁵

The effectiveness of treatment depends on several factors: how early you consult a professional (sooner means better results), consistency with home exercises, the severity of the sprain, a gradual return to activities, and the strength of your stabilizing muscles. A complete assessment allows us to tailor the treatment to your specific situation.

Most patients notice an improvement within the first 1-2 sessions, with complete resolution typically achieved in 4-8 weeks.

Are you suffering from a lumbar sprain? Book an appointment for a complete assessment and a personalized treatment plan.

What is the typical recovery time?

Most lower back sprains heal within 4 to 8 weeks with proper treatment. Your body has a remarkable ability to heal. Milder cases resolve in a few weeks, while more significant injuries may require up to 8 to 12 weeks for full recovery.

Phases of Ligament Healing

Factors Influencing Recovery

• Age: Younger individuals generally heal faster
• Medical Comorbidities: Conditions like diabetes, vascular disorders, or autoimmune diseases can slow down healing
• Smoking: Compromises tissue blood supply and delays regeneration
• Nutritional Status: Protein and vitamin C intake are essential for collagen synthesis
• Psychosocial Factors: High stress, anxiety, and negative expectations are associated with longer recovery paths

Return to Work and Sport

If your pain persists beyond 3 months, consult our guide on chronic pain to understand the sensitization mechanisms and appropriate treatment approaches.

How to Prevent Future Lower Back Sprains?

Preventive strategies for lower back sprains include maintaining strong core muscles to protect your ligaments, practicing proper lifting techniques, regular flexibility exercises, and ergonomic adjustments to your workplace.

Strengthening Stabilizing Muscles

Strengthening your core's stabilizing muscles is the cornerstone of prevention. Deep abdominal muscles, especially the transverse abdominis, create core stiffness by increasing intra-abdominal pressure. This partially unloads your ligaments.

Proper Lifting Techniques

• Adopt a wide stance with your feet shoulder-width apart
• Keep the load close to your body to minimize leverage
• Primarily use your leg muscles rather than your back
• Avoid bending and twisting at the same time, as this puts maximum strain on your ligaments
• Divide heavy loads into multiple lighter lifts

Lower Limb Flexibility

• Limited hip flexion forces your spine to compensate
• Stiff hamstrings limit your pelvis's tilt during bending
• A regular stretching program helps maintain optimal range of motion in your hips

Workplace Ergonomics

• Adjust your chair height so your hips and knees are at a 90-degree angle
• Use lumbar support to maintain the natural curve of your lower back
• Regularly alternate between sitting and standing positions
• Take short breaks to move every 20 to 30 minutes

When to Seek Emergency Care for Lower Back Pain?

Consult a doctor immediately if you experience loss of bladder or bowel control, progressive leg weakness, numbness in the genital area (saddle anesthesia), fever accompanying your back pain, or severe pain following a significant injury.

Warning Signs (Red Flags)

Rest assured: serious symptoms are rare. They occur in less than 1% of cases. However, you should be aware of them to act quickly if necessary.

• Lower Back Pain: A Complete Guide to Understanding the Overall Context
• Lumbar disc herniation if a disc is affected
• Lumbar directional preference for tailored exercises
• Lumbosciatica if the pain goes down the leg
• Back Pain: Complete Guide for an overview
• Physiotherapy for Lower Back Pain to learn more about treatments
• Lumbar osteoarthritis if joint wear is present

1. Bogduk N. Clinical and Radiological Anatomy of the Lumbar Spine. 5th ed. Edinburgh: Churchill Livingstone; 2012.

1. Delitto A, George SZ, Van Dillen L, et al. Low back pain: clinical practice guidelines linked to the International Classification of Functioning, Disability, and Health from the Orthopaedic Section of the American Physical Therapy Association. J Orthop Sports Phys Ther. 2012;42(4):A1-A57.

1. Henschke N, Maher CG, Refshauge KM, et al. Prevalence of and screening for serious spinal pathology in patients presenting to primary care settings with acute low back pain. Arthritis Rheum. 2009;60(10):3072-3080.

1. Koes BW, van Tulder MW, Thomas S. Diagnosis and treatment of low back pain. BMJ. 2006;332(7555):1430-1434.

1. Maher C, Underwood M, Buchbinder R. Non-specific low back pain. Lancet. 2017;389(10070):736-747.

1. Qaseem A, Wilt TJ, McLean RM, Forciea MA. Noninvasive treatments for acute, subacute, and chronic low back pain: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2017;166(7):514-530.

1. Wong JJ, Côté P, Sutton DA, et al. Clinical practice guidelines for the noninvasive management of low back pain: a systematic review by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration. Eur J Pain. 2017;21(2):201-216.