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Spondyloarthropathy
Aka: Spondyloarthropathy
- Clinical Features: Common to every Spondyloarthropathy
- Inflammatory back pain
- Dactylitis
- Inflammation of entire digit
- Enthesitis
- Inflammation of tendon and ligament bony attachments
- Common areas of involvement
- Achilles tendon insertion (Calcaneus)
- Platar fascia insertion (Calcaneus)
- Patellar tendon insertion (tibial tubercle)
- Patella margin (superior and inferior)
- Metatarsal heads
- Spinal ligament insertion (Vertebral body)
- Causes
- Ankylosing Spondylitis
- Reactive Arthritis (e.g. Reiter's Syndrome)
- Psoriatic Arthritis
- Inflammatory Bowel Disease with Spondyloarthropathy
- Differential Diagnosis
- Rheumatoid Arthritis
- Labs
- Rheumatoid Factor (RF) negative
- Erythrocyte Sedimentation Rate (ESR) elevated
- C-Reactive Protein (CRP) elevated
- Complete Blood Count (CBC)
- Anemia of Chronic Disease
- HLA-B27 positive
- Synovial Fluid exam: WBCs > 2,000/ml
- References
- Liu in Noble (2001) Primary Care, p. 1280-93
- Kataria (2004) Am Fam Physician 69:2853-60 [PubMed]