Early Ankylosing Spondylitis Diagnosis - Medical Algorithm

Are you evaluating a patient for early signs of ankylosing spondylitis?

Yes

Age of the patient

years

Gender of the patient

Male

Female

ESR

mm per hour

Does the patient have?

• HLA B27?

Yes

• inflammatory type spinal pain?

Yes

• lower back pain?

Yes

• thoracic pain?

Yes

• limited chest expansion?

Yes

• peripheral arthritis?

Yes

• heel pain?

Yes

• anterior uveitis?

Yes

• limited motion in all planes in the cervical spine?

Yes

• limited motion in all planes in the lumbar spine?

Yes

• radiologic findings in vertebral X-rays?

Yes

• traumatic, degenerative or noninflam-matory spinal disease?

Yes

• psoriasis?

Yes

• reactive arthritis?

Yes

• malignancy?

Yes

• systemic infection?

Yes

• significant metabolic or endocrine disease?

Yes

• a non-rheumatologic explanation for an elevated ESR?

Yes

• a positive rheumatoid factor?

Yes

Results

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Results Interpretation and Description References Next Steps

Data complete?

Evaluation appropriate?

Diagnostic score

Number of conditions making ankylosing spondylitis unlikely

Does the patient have early ankylosing spondylitis?

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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
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
Differential Diagnosis And Mimics, Red Flags
- Screening Questionnaire for Ankylosing Spondylitis

Monitoring

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

Evaluation

Results

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Monitoring

Specialty

Objective

ICD-10

Early Diagnostic Criteria for Ankylosing Spondylitis

Purpose: To evaluate a patient for early findings of ankylosing spondylitis using the diagnostic criteria of Mau et al.

Evaluation

Results

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Monitoring

Specialty

Objective

ICD-10