Ankylosing Spondylitis Differential Diagnosis - Medical Algorithm

Evaluation

Are you evaluating a patient with back discomfort?

Yes

Age of onset for the back discomfort

years

Duration of back discomfort

months

Did the back discomfort have an insidious onset?

Yes

Is the back discomfort associated with morning stiffness?

Yes

Does the back discomfort get better following exercise?

Yes

Results

Please fill out required fields.

Results Interpretation and Description References Next Steps

Data complete?

Evaluation appropriate?

Number of criteria for spondylitis present

Is spondylitis possible?

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Risk Factors
- Anklyosing Spondylitis & Axial Spondyloarthritis | Risk Factors for Radiographic Progression
Clinical Diagnosis, Including Family History For Genetics
- Modified Schober Index of Macrae and Wright for Measuring Back Flexion
- Criteria for Juvenile Enthesitis-Related Arthritis
Imaging Studies
Laboratory Tests
Other Testing
- Modified Schober Index of Macrae and Wright for Measuring Back Flexion
- Ankylosing Spondylitis Disease Activity Score
Criteria For Diagnosis
Severity, Prognosis, Stage

Monitoring

Response To Therapy
Disease Progression
Comorbid Conditions
- Clinical Features of Arthritis with Ulcerative Colitis
- Inflammatory Back Pain with Chronic Back Pain | ASAS Criteria

Specialty

Immunology/Rheumatology

Objective

clinical diagnosis
including family history for genetics
differential diagnosis and mimics
red flags

ICD-10

M45 - Ankylosing spondylitis

Screening Questionnaire for Ankylosing Spondylitis

Purpose: To screen a patient with back pain for findings suggestive of spondylitis.