Chronic Non-Specific Musculoskeletal Pain in Children

Introduction

Chronic musculoskeletal (MSK) pain is a common presentation in pediatric orthopedic practice. In many children, pain occurs without a clearly identifiable structural abnormality on imaging or physical examination.

These conditions can be challenging because:

• Symptoms may be severe despite normal investigations
• Pain is often multifactorial
• Psychological and social factors may contribute significantly

Successful management requires:

• Careful clinical assessment
• Exclusion of serious pathology
• Reassurance
• Rehabilitation-focused treatment

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The Concept of Orthopedic Vulnerability

Orthopedic practice traditionally relies heavily on:

• X-rays
• MRI scans
• Visible structural pathology

This approach becomes difficult when:

• Symptoms are significant
• Imaging appears normal

In such situations, the traditional strength of orthopedic diagnosis may become a limitation.

Clinical judgment therefore becomes essential.

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Chronic Regional Pain Syndrome (CRPS)

Definition

Complex Regional Pain Syndrome is characterized by:

• Severe pain disproportionate to the original injury
• Abnormal pain sensitivity
• Autonomic and sensory changes

Children generally have a better prognosis than adults.

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Clinical Features

Typical findings include:

• Burning pain
• Allodynia
• Hyperalgesia
• Skin color changes
• Swelling
• Temperature variation
• Reduced limb use

Pain is often significantly greater than expected for the injury.

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Management

Treatment focuses on:

• Reassurance
• Physiotherapy
• Desensitization therapy
• Gradual functional restoration

Early mobilization is important.

Excessive immobilization should be avoided.

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Growth-Related Joint Pain

Overview

Growth-related pain is common in adolescents and is often associated with:

• Sports participation
• Rapid growth
• Muscle tightness

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Clinical Features

Typical presentation includes:

• Bilateral knee pain
• Activity-related symptoms
• Tight hamstrings
• Tight quadriceps

Symptoms usually worsen with physical activity.

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Management

Treatment includes:

• Stretching exercises
• Physiotherapy
• Activity modification when required

Most cases improve with conservative management.

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Chronic Apophyseal Injuries

Overview

Apophyseal injuries occur due to repetitive traction at tendon insertion sites.

Common examples include:

• Osgood-Schlatter Disease
• Sever’s Disease

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Clinical Features

Typical findings include:

• Activity-related pain
• Localized tenderness
• Symptoms improving with rest

Diagnosis is primarily clinical.

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Management

Treatment focuses on:

• Stretching programs
• Activity modification
• Relative rest

These conditions are usually self-limiting.

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Growing Pains

Overview

Growing pains are a common benign pain syndrome seen in children between:

• Approximately 3–7 years of age

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Clinical Features

Typical characteristics include:

• Night-time pain
• Bilateral lower limb discomfort
• Normal daytime activity
• Normal physical examination

Children are otherwise healthy.

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Management

Treatment primarily involves:

• Reassurance
• Massage
• Observation

No extensive investigations are required when the presentation is typical.

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Joint Hypermobility Syndrome

Overview

Joint hypermobility may cause chronic musculoskeletal symptoms in children.

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Clinical Features

Children may present with:

• Generalized hyperflexibility
• Clumsiness
• Fatigue
• Recurrent pain

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Diagnosis

Assessment commonly uses:

• Beighton score
• Brighton criteria

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Management

Management focuses on:

• Fitness training
• Strengthening exercises
• Reassurance

Improving muscular support is important.

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Central Sensitization Disorder

Definition

Central sensitization refers to abnormal amplification of pain processing within the nervous system.

Pain occurs despite minimal or absent tissue pathology.

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Clinical Features

Common features include:

• Allodynia
• Hyperalgesia
• Widespread pain
• Increased pain sensitivity

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Management

Treatment emphasizes:

• Patient and family education
• Gradual exercise programs
• Functional rehabilitation

The goal is restoration of normal activity rather than elimination of all pain.

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Psychological and Social Factors

Importance

Psychological and social influences play a major role in pediatric chronic pain.

Factors include:

• Anxiety
• School stress
• Family dynamics
• Sleep disturbance

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Parental Influence

Parental anxiety can unintentionally:

• Reinforce pain behaviors
• Increase disability perception

Education and reassurance of caregivers are therefore essential.

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Clinical Principles

Rule Out Serious Conditions First

Always exclude important pathology such as:

• Infection
• Malignancy
• Inflammatory disease
• Fracture
• Neurological conditions

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Avoid Over-Reliance on Imaging

Normal imaging does not exclude significant pain.

Similarly, incidental imaging abnormalities may not explain symptoms.

Clinical correlation is essential.

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Rehabilitation-Focused Approach

Management should prioritize:

• Function
• Activity restoration
• Strengthening
• Gradual return to normal life

rather than prolonged rest or repeated investigations.

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Opioid Use and Public Health Concerns

Opioid misuse is an increasing concern worldwide.

In pediatric chronic musculoskeletal pain:

• Non-pharmacological management is preferred
• Long-term opioid therapy should generally be avoided

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Importance of Empathy

Children with chronic pain often feel:

• Frustrated
• Misunderstood
• Anxious

Empathy and clear communication are critical components of treatment.

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Key Clinical Pearls

• Chronic musculoskeletal pain in children is common and often benign.
• Serious pathology must always be excluded first.
• Normal imaging does not invalidate symptoms.
• CRPS has a better prognosis in children than adults.
• Growing pains typically occur at night with a normal examination.
• Hypermobility commonly contributes to chronic pain.
• Rehabilitation and reassurance are central to treatment.
• Psychological and social factors significantly influence pain experience.

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Final Take-Home Message

Chronic non-specific musculoskeletal pain in children requires a balanced clinical approach.

The key principles include:

• Careful evaluation
• Exclusion of serious pathology
• Avoidance of unnecessary investigations
• Reassurance
• Functional rehabilitation

Successful treatment depends not only on medical management but also on empathy, communication, and understanding the broader biopsychosocial aspects of pediatric pain.