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Inflammatory Back Pain / Axial Spondyloarthritis

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About Inflammatory Back Pain / Axial Spondyloarthritis

Axial spondyloarthritis (axSpA) is a chronic inflammatory rheumatic disease that primarily affects the axial skeleton, including the sacroiliac joints and spine. It commonly presents as inflammatory back pain, often beginning in early adulthood, and may progress over time to structural changes, reduced spinal mobility, and functional limitation if not appropriately managed.

Axial spondyloarthritis exists on a disease spectrum, encompassing:

  • Non-radiographic axial spondyloarthritis, where inflammatory changes may be present clinically and on MRI without definitive radiographic changes, and
  • Radiographic axial spondyloarthritis (ankylosing spondylitis), characterized by structural changes visible on plain radiographs.

Early identification of axSpA is critical, as diagnostic delays are common and are associated with worse long-term outcomes, including persistent pain, reduced physical function, and impaired quality of life. Symptoms are frequently mistaken for mechanical low back pain, particularly in women and individuals without classic radiographic findings.

Management of axSpA differs fundamentally from mechanical spinal conditions. Care focuses on long-term disease management, combining structured exercise and education with appropriate medical management to control inflammation, preserve mobility, and support participation in work, family, and community life. Rehabilitation plays a central role throughout the disease course and should be integrated with medical care.

This care pathway addresses the recognition, conservative management, referral considerations, and prognosis of inflammatory back pain and axial spondyloarthritis in adults. It does not provide detailed pharmacologic prescribing guidance but outlines the role of medications within an interdisciplinary care model.

The pathway is intended to support clinicians in early identification, appropriate referral, and coordinated long-term management, with an emphasis on function, participation, and quality of life.

About CCG Care Pathways

Purpose

CCG care pathways provide structured, evidence-based guidance for clinicians delivering conservative, non-operative care for common musculoskeletal conditions. They outline key steps of the clinical encounter, support safe and appropriate decision-making, and assist with referral or co-management when indicated. Pathways are designed as practical, user-friendly tools that complement, not replace, clinical judgment.

Development

Pathways are developed using the best available evidence from high-quality clinical practice guidelines when they exist, and from systematic reviews and expert consensus when guideline evidence is limited or evolving. Content is reviewed periodically to reflect emerging research and current best practices. Input from clinicians, educators, and researchers helps ensure pathways remain relevant, aligned with real-world practice, and responsive to user needs.

Principles of Conservative Care

Musculoskeletal conditions are multifactorial and often influenced by physical, psychological, social, and environmental factors. As such, there is no one-size-fits-all approach to care. Effective management should be ethical, evidence-informed, transparent, flexible, and tailored to individual needs. Shared decision-making ensures care aligns with patient goals and values. Ongoing monitoring and outcome assessment support a person-centred approach and enable timely adjustments to care plans. Care may be delivered in-person, virtually, or through hybrid models, guided by patient preference, access, and clinical judgment.

Disclaimer

CCG care pathways are intended to support, not substitute for, professional clinical decision-making or the advice of a qualified healthcare provider. Recommendations are evidence-informed and presented in simplified, accessible language to support clinical understanding and application. Terms used throughout are not intended as formal diagnostic or billing terminology, nor are pathways prescriptive, authoritative, or regulatory.

Providers are expected to apply their clinical expertise and consult authoritative sources such as regulatory standards and policies, diagnostic classification systems (e.g., ICD-10-CA), scope-of-practice documents, continuing professional education resources, and peer-reviewed literature. Pathways may not apply to every clinical scenario and should always be interpreted in the context of individual patient needs.

Inflammatory Back Pain / Axial Spondyloarthritis Care Pathway

1. Record Keeping

Accurate, timely, and comprehensive documentation is an essential component of high-quality, evidence-based care. Clinical records must clearly reflect patient interactions, clinical reasoning, and progress over time, and should meet all jurisdictional regulatory standards.

Providers are encouraged to use a structured note format, such as the SOAP framework, to support consistency, clarity, and continuity of care.

Subjective: Document the patient’s reported symptoms, concerns, functional changes, contextual factors (e.g., psychosocial or environmental influences), and responses to prior care.

Objective: Record measurable or observable findings, including physical examination results, relevant diagnostic tests, functional assessments, and any clinically significant changes.

Assessment: Provide the clinical interpretation of findings, including diagnostic impressions or updates, identification of key risk factors or modifiers, and evaluation of the patient’s status or progression.

Plan: Outline the management strategy, including treatments delivered, modifications made, patient education and self-management recommendations, referrals, co-management decisions, and planned follow-up.

Documentation should be completed contemporaneously and maintained in accordance with regulatory requirements for privacy, security, and record retention. High-quality records support patient safety, facilitate interprofessional communication, enable shared decision-making, and promote continuity and accountability in care.

2. Informed Consent
  • Definition: A process where the patient voluntarily agrees to proposed healthcare interventions after receiving adequate information on the nature, benefits, risks, and alternatives.
  • Key Aspects:
    • Prior to interaction: Obtain consent before any diagnostic testing or treatment. Ensure the patient understands the planned examinations, treatments, expected outcomes, and is given the opportunity to ask questions.
    • Voluntarily and specific: Consent must be given willingly, without coercion, and pertain to the specific condition and proposed treatment. The patient should also understand that they can withdraw consent at any time. 
    • Transparent process: Consent must be obtained honestly, with a clear explanation of the condition and proposed interventions. Consent is not a one-time event, and involves ongoing discussions with the patient.
    • Patient understanding and agreement:
      • Diagnosis/prognosis: Explain findings clearly, using understandable language and visuals if needed.
      • Treatment plan: Outline recommended treatments and how they align with patient goals. Discuss benefits, risks, and alternatives.
      • Questions: Encourage questions and confirm understanding (e.g., “teach-back”).
    • Documentation: Record the consent process, including information provided, patient questions, and explicit consent given.
3. Health History
  • Apply cultural awareness and trauma-informed care principles.
    Acknowledge prior healthcare experiences, prolonged diagnostic journeys, and potential impacts on trust, engagement, and expectations.
  • Sociodemographic information: 
  • Age (typical onset <45 years), gender, sex, race/ethnicity, family history of spondyloarthritis or related inflammatory conditions.
  • Main complaint: 
    • Where is the pain located? (low back, buttocks, alternating sides, thoracic or neck involvement)
    • When did symptoms begin, and were they gradual or sudden in onset?
    • How long have symptoms been present (>3 months)?
    • What is the pattern of stiffness, particularly in the morning (duration >30 minutes)?
    • Do symptoms improve with movement or exercise and worsen with rest?
    • Is pain present at night, particularly in the second half of the night?
    • What activities aggravate or relieve symptoms?
    • Are there fluctuations or flares over time?
  • Associated musculoskeletal symptoms:
    Peripheral joint pain or swelling, enthesitis (e.g., heel, Achilles, plantar fascia), hip pain, reduced spinal mobility.
  • Extra-articular features:
    History of uveitis/iritis, psoriasis, inflammatory bowel disease, dactylitis, or inflammatory heel pain.
  • Body systems review: Neurologic, cardiovascular (including chest wall pain), genitourinary, gastrointestinal, musculoskeletal, bone density, eyes/ears/nose/throat, respiratory, skin, mental health, reproductive.
  • Health, lifestyle, and history: Prior diagnoses of back pain or arthritis; previous investigations; response to NSAIDs (rapid and marked response); current and past medications; physical activity levels; diet; sleep disturbance; smoking, alcohol/substance use, family support, caregiver responsibilities, work/school environment.
  • Functional and participation context:
    Impact on work, school, caregiving, physical activity, and daily participation; variability across days; effects of symptom flares.
  • Social determinants of health: Employment, childcare, education, nutrition, housing, domestic violence, child maltreatment, discrimination, social support; access to primary care, rheumatology, imaging, and rehabilitation.
  • Previous treatments and responses: Document prior pharmacologic and non-pharmacologic treatments, effectiveness, and adverse effects.
  • Beliefs and expectations: Assess patient understanding of inflammatory versus mechanical back pain; expectations regarding diagnosis, long-term management, and role of exercise and medication. 
  • Flag considerations: Identify red, orange, and yellow flags for potential referrals.

​​Outcomes Assessments: Prioritize approaches aligned with inflammatory disease impact and participation.

  • Pain: Use pain scales (e.g., NRS) and diagrams.
  • Function and Participation: Evaluate impact on daily activities (BASFI, PSFS, WHODAS).
  • Recovery: Use Self-rated recovery scales.
  • Quality of Life: Assess using tools such as SF-12.
  • Work/school Status: Monitor return to activities.
  • Sleep quality: Assess using tools such as PSQI.
  • Individual Goals: Set SMART goal setting (Specific, Measurable, Achievable, Relevant, Timely).
  • Patient Feedback: Gather and integrate patient experience and satisfaction.
4. Red Flags : Differential Diagnosis Requiring Medical Attention

ACTION: Refer immediately to emergency care:

  • Suspected serious spinal pathology: New or progressive neurologic deficits, saddle anesthesia, acute bowel or bladder dysfunction, or rapidly worsening weakness.
  • Systemic infection or malignancy indicators: Fever, chills, unexplained weight loss, night sweats, history of cancer, immunosuppression, or intravenous drug use with back pain.
  • Acute severe pain following trauma with suspected fracture or spinal instability.

ACTION: Refer to appropriate medical provider:

Referral is recommended when inflammatory back pain features are present, particularly when symptoms persist >3 months and began before age 45, including one or more of the following:

  • Back pain improving with exercise and not relieved by rest
  • Morning stiffness lasting >30 minutes
  • Night pain (especially in the second half of the night)
  • Alternating buttock pain
  • Clear or rapid response to NSAIDs
  • Extra-articular manifestations: Uveitis, psoriasis, inflammatory bowel disease, enthesitis, or dactylitis
  • Family history of spondyloarthritis or related inflammatory conditions
  • Elevated inflammatory markers (CRP/ESR) or known HLA-B27 positivity (if already tested)

ACTION: Medical review or co-management recommended if any of the following are present

  • Progressive functional limitation or reduced spinal mobility despite conservative care
  • Persistent high disease activity affecting work, sleep, or participation
  • Poor response or intolerance to NSAIDs
  • Psychosocial factors significantly limiting adherence to long-term management
  • Diagnostic uncertainty, including mixed mechanical and inflammatory features
5. Orange Flags: Symptoms of Psychiatric Disorders Requiring Referral

Clinicians should promptly address symptoms of potential mental health disorders to prevent harm through appropriate and timely referrals.

ACTION: Refer for immediate care (emergency department, medical/mental health provider):

  • Suicidal ideation: Thoughts, plans, or statements about suicide or feelings of hopelessness.   
  • Severe, acute symptoms: Acute psychological distress, such as psychosis, severe panic.
  • Ideation of harm: Intent or plans to self-harm, commit violence, or harm others.

ACTION: Refer to appropriate medical/mental health provider:

  • Persistent, non-urgent symptoms: Symptoms affecting daily functioning (e.g., low mood, anxiety, sleep disturbances, social withdrawal, substance use).

ACTION: Co-management by non-medical/mental health providers:

  • Triage: Ensure primary management by medical/psychiatric providers.
  • Musculoskeletal (MSK) treatment: Manage MSK conditions related to or comorbid with psychological disorders.
  • Screening tools: Selectively use tools to monitor symptoms and severity, guide care, and support escalation without implying a diagnosis. Tools include:
    • PHQ-9 (depressive symptoms)
    • GAD-7 (anxiety symptoms)
    • FABQ (fear related to physical activity/work) 
    • PCS (catastrophic thoughts) 
    • ORT (opioid risk)
6. Yellow Flags: Psychosocial Factors that May Delay Recovery

Non-health barriers can delay recovery; early identification and intervention can enhance outcomes.

Factors:

  • Individual: Worry, fear of movement, low recovery expectations, limited self-efficacy, reliance on passive treatments, activity avoidance.
  • Social: Lack of family/social support, limited connections.
  • Socioeconomic: Employment status, financial stress, litigation/compensation.
  • Environmental/cultural: Social inequality, unsafe/unsupportive environments.
  • Life events: Major transitions (e.g., divorce, job loss), chronic stressors (e.g., caregiving).
  • Work/school: High stress, poor work-life balance, limited accommodations for injury/illness.

ACTION: Co-management by non-medical/mental health providers: 

  • Education & self-care: Provide resources for (e.g., stress management, coping strategies, graded activity).  
  • Monitor & coordinate: Regularly assess psychosocial challenges; refer to medical/mental health provider if persistent.
  • Screening tools: Selectively use tools to monitor symptoms and severity, guide care, and support escalation (aligned with Orange Flag guidance), without implying a diagnosis. Tools include:
    • PHQ-9 (depressive symptoms)
    • GAD-7 (anxiety symptoms)
    • FABQ (fear related to physical activity/work) 
    • PCS (catastrophic thoughts) 
    • ORT (opioid risk)

7. Physical Examination for Inflammatory Back Pain / Axial Spondyloarthritis
  • General observation:
    Posture, spinal alignment, movement behaviour, willingness to move, and overall stiffness, particularly after rest.
  • Spinal mobility:
    • Assess active range of motion of the cervical, thoracic, and lumbar spine.
    • Note global or segmental restriction, especially reduced lumbar flexion and extension.
    • Compare movement quality and symptom response rather than absolute range values.
  • Chest expansion:
    Observe and, where appropriate, measure chest expansion during deep inspiration, particularly if thoracic involvement is suspected.
  • Hip examination:
    • Screen hip range of motion, particularly internal rotation and flexion.
    • Identify hip pain or restriction that may contribute to functional limitation or suggest hip involvement in axSpA.
  • Peripheral joints and entheses:
    Assess for swelling, tenderness, or reduced range of motion in peripheral joints.
    Palpate common enthesis sites (e.g., Achilles tendon, plantar fascia, costosternal junctions) for localized tenderness.
  • Neurologic screening:
    Perform a brief neurologic screen to exclude neurologic compromise (strength, sensation, reflexes) when indicated.
  • Functional assessment:
    Evaluate tolerance to functional tasks such as sit-to-stand, walking, bending, and sustained postures.
    Observe symptom response to movement versus rest.
  • Response to movement:
    Note whether symptoms improve with repeated movement or gentle activity, which supports an inflammatory pain pattern.

Physical examination findings in axSpA may be subtle or absent in early disease. A normal examination does not exclude inflammatory pathology. The examination should guide timely referral and co-management, rather than delay specialist assessment when clinical suspicion is high.

    8. Clinical Presentations for axSpA

    Clinical presentation of axSpA is characterized by inflammatory spinal pain patterns, functional limitation, and fluctuating disease activity. Presentations evolve over time and may vary widely between individuals. Symptoms should be interpreted in the context of age at onset, duration, and response to activity rather than imaging findings alone.

    Typical Presentation

    • Chronic back pain lasting >3 months with onset before age 45
    • Inflammatory pain pattern:
      • Gradual onset
      • Improves with movement or exercise
      • Worsens with rest or inactivity
      • Prominent morning stiffness (>30 minutes)
      • Night pain, particularly in the second half of the night
    • Functional limitations: Reduced tolerance for prolonged sitting, standing, or static postures; difficulty with bending or rotation; reduced participation in work, physical activity, or recreation
    • Fatigue, often disproportionate to activity level

    Axial and Regional Involvement

    • Low back and buttock pain (often alternating sides)
    • Thoracic or cervical spine stiffness or pain
    • Hip involvement, which may significantly affect function and prognosis

    Peripheral and Extra-Articular Manifestations

    • Peripheral arthritis (asymmetric, lower limb predominance)
    • Enthesitis (e.g., Achilles tendon, plantar fascia, costosternal junctions)
    • Dactylitis
    • Extra-articular features such as uveitis, psoriasis, or inflammatory bowel disease

    Early or Non-Radiographic Disease

    • Symptoms may be present despite normal plain radiographs
    • Physical examination findings may be minimal
    • MRI may demonstrate active inflammation, but clinical suspicion should guide referral even in the absence of imaging abnormalities

    Atypical or Delayed Presentations

    • Less prominent morning stiffness or night pain
    • Mixed mechanical and inflammatory features
    • Higher prevalence of peripheral symptoms, fatigue, or pain amplification
    • More common in women and older adults, contributing to diagnostic delay

    Clinical presentations in axSpA are heterogeneous and dynamic. Ongoing reassessment is essential to monitor disease impact, guide rehabilitation, and determine the need for escalation or co-management.

    9. Conservative Management Considerations for axSpA

    Approach to Conservative Management

    Conservative management is a core and lifelong component of care for individuals with inflammatory back pain and axial spondyloarthritis and should be initiated early, alongside appropriate medical management. International clinical practice guidelines consistently emphasize that exercise and patient education are foundational.

    Management should be individualized, progressive, and sustained, with the primary goals of:

    • controlling symptoms,
    • preserving spinal mobility and physical function,
    • supporting participation in work, physical activity, and daily life,
    • preventing long-term disability.

    Conservative care should be delivered within a shared-care model, integrated with rheumatology and primary care, rather than as episodic or short-term treatment.

    Education and Self-Management

    Education is a cornerstone of axSpA management and should be provided early and reinforced over time.

    Key elements include:

    • Clear explanation of axSpA as a chronic inflammatory condition distinct from mechanical back pain
    • Reassurance regarding the safety and necessity of regular physical activity
    • Education on symptom fluctuation, disease activity, and long-term management expectations
    • Support for self-management strategies, including pacing, flare management, sleep hygiene, stress management, and smoking cessation (smoking is associated with worse outcomes)

    Education should promote active patient engagement and shared decision-making, rather than reliance on passive treatments.

    Exercise Therapy (Core, First-Line Intervention)

    Exercise therapy is strongly recommended for all individuals with axSpA, regardless of disease stage or imaging findings.

    Established standards of care support:

    • Regular, lifelong exercise participation
    • Programs that include:
      • spinal mobility and posture exercises,
      • strengthening of trunk and hip musculature,
      • aerobic conditioning,
      • functional and balance training as needed

    Exercise programs should be:

    • Individualized and progressive
    • Adapted to disease activity, symptoms, and functional goals
    • Delivered through supervised, group-based, or home-based formats depending on access and preference

    No single exercise modality has been shown to be superior. Adherence and long-term engagement are more important than exercise type.

    Supervised Rehabilitation

    Supervised rehabilitation may be beneficial, particularly for:

    • individuals with higher disease activity,
    • reduced mobility or function,
    • difficulty initiating or maintaining independent exercise programs.

    Focus on:

    • optimizing movement quality and spinal mobility,
    • addressing deconditioning and movement avoidance,
    • supporting confidence with physical activity.

    Manual Therapy

    Manual therapy may be used as a short-term adjunct to support symptom relief and movement confidence.

    • It should not replace active exercise
    • It should be used cautiously during periods of high disease activity
    • Evidence supports only adjunctive use, not stand-alone treatment

    Medications (Role of Conservative Care in Context)

    While pharmacologic management (e.g., NSAIDs, biologic therapies) is directed by medical providers, conservative care plays a key role in:

    • supporting adherence to medical treatment,
    • monitoring functional response and participation,
    • identifying inadequate response requiring medical reassessment.

    Exercise and rehabilitation remain essential even when pharmacologic disease control is optimal.

    Multidisciplinary and Long-Term Care Considerations

    • Conservative management should be coordinated across providers to ensure continuity of care
    • Long-term follow-up should emphasize maintenance of physical activity and function, not discharge after symptom improvement
    • Rehabilitation strategies should adapt across the lifespan and disease course
    10. Risk and Prognostic Factors for axSpA

    Risk and Prognostic Factors

    Prognosis in axSpA is heterogeneous and is influenced by inflammatory burden, structural progression risk, lifestyle factors, and access to timely diagnosis and effective treatment.

    Factors commonly associated with worse outcomes (pain, function, progression, or participation):

    • Higher disease activity and persistent inflammation (ongoing symptoms and elevated inflammatory markers when present)
    • Hip involvement and more extensive axial symptoms
    • Smoking (associated with worse disease outcomes and greater structural damage risk)
    • Reduced physical activity / deconditioning and prolonged sedentary behaviour
    • Delayed diagnosis and delayed access to appropriate specialist care
    • Psychosocial factors that reduce adherence to long-term management (e.g., low self-efficacy, depression/anxiety, high fear of movement)
    • Barriers to care (limited access to rheumatology, supervised exercise, or consistent follow-up)

    Factors commonly associated with better outcomes:

    • Early recognition and rheumatology co-management when axSpA is suspected
    • Sustained, structured exercise participation (long-term adherence is key)
    • Smoking cessation and risk-factor modification
    • Effective control of inflammation (medical management) paired with rehabilitation to preserve function and participation

    Prognosis

    • Rehabilitation should be framed as lifelong function maintenance and participation support, not a short episode of care.
    • axSpA is typically a long-term condition with fluctuating disease activity. Many individuals achieve good function and participation with early diagnosis, appropriate medical care, and sustained exercise.
    • Some individuals develop persistent pain, functional limitation, and structural progression over time. This risk is higher when inflammatory activity remains uncontrolled, when hip involvement is present, and in people who smoke.
    11. Ongoing Follow-up
    • Monitor progress: Reassess symptoms, functional status, and patient-reported outcomes at appropriate intervals. Confirm that care remains aligned with the patient’s goals, values, and expectations.
    • Adjust treatment plan: Continuously realign the management plan based on evolving goals, treatment response, clinical findings, and professional judgment. Modify interventions, dosage, frequency, or focus as needed to support meaningful improvement.
    • Support self-management: Reinforce the patient’s understanding of home strategies, activity recommendations, and behavioural approaches. Encourage adherence and address barriers that may affect progress.
    • Recognize plateaus or change in status: Identify when the patient is improving, stable, or worsening. Reassess for contributing factors such as comorbidities, psychosocial influences, or new functional limitations.
    • Referral and co-management: Consider referral or co-management with an appropriate provider when there is limited or no significant improvement within an expected timeframe (for example 6 to 8 weeks), when new or concerning findings emerge, or when additional expertise is required to support optimal care.
    • Documentation: Record follow-up assessments, changes to the plan, patient feedback, reassessment of goals, and any referral or co-management decisions.
    12. Criteria for Discharge
    • Discharge criteria: Establish clear criteria for concluding active care. These may include achieving the patient’s initial goals, demonstrating meaningful improvement in symptoms or function, reaching a plateau in progress, or transitioning to self-management as the primary approach. Consider patient preferences, functional demands, and clinical judgment when determining readiness for discharge.
    • Clinical reassessment: Prior to discharge, complete a focused reassessment to confirm stability of symptoms, functional status, and the patient’s confidence in managing their condition. Address any remaining concerns and ensure no new issues require further evaluation.
    • Post-discharge planning: Discuss ongoing self-management strategies, including activity recommendations, home exercises, behavioural or lifestyle modifications, and symptom monitoring. Provide guidance on when to return for follow-up, when to seek additional care, and what indicators should prompt medical evaluation.
    • Future care needs: Clarify options for episodic care, preventive visits, or re-engagement with the provider if symptoms recur or functional demands change. Encourage ongoing communication if new concerns arise.
    • Documentation: Record the rationale for discharge, the patient’s status at the time of discharge, self-management recommendations provided, and the agreed-upon follow-up plan

    References