Monoarticular arthritis
Differential Diagnosis
Monoarticular arthritis
Algorithm for Monoarticular arthralgia
- Acute osteoarthritis
- Avascular necrosis
- Crystal-induced (Gout, Pseudogout)
- Gonococcal arthritis, arthritis-dermatitis syndrome
- Nongonococcal septic arthritis
- Lyme disease
- Malignancy (metastases, osteochondroma, osteoid osteoma)
- Reactive poststreptococcal arthritis
- Trauma-induced arthritis
- Fracture
- Ligamentous injury
- Overuse
- Avascular necrosis
- Decompression sickness
- Spontaneous osteonecrosis
- Hemorrhagic (e.g. hemophilia, systemic anticoagulation
- Seronegative spondyloarthropathies (ankylosing spondylitis, IBD, psoriatic arthritis, reactive arthritis
- RA, SLE
- Sarcoidosis, amyloidosis
- Periarticular pathology
- Cellulitis
- Tendonitis
- Bursitis
- Transient (Toxic) Synovitis (Hip)
- Slipped Capital Femoral Epiphysis (SCFE)
- Legg Calve Perthes Disease
Septic Arthritis
- Gonococcal arthritis
- Nongonococcal Arthritis
- Arthritis-Dermatitis Syndrome
Crystal-Induced Monoarthritis
Traumatic
- Fracture
- Ligamentous injury
- Overuse
Ischemic
- Avascular necrosis
- Decompression sickness
- Spontaneous osteonecrosis
- pain in absence of trauma
- femoral head, medial conyle of knee
Hemorrhagic
- Posttraumatic
- Hemophilia
- Systemic anticoagulation
Neoplastic
- Metastases
- Osteochondroma
- Osteoid osteoma
- Pigmented villonodular synovitis
Systemic Disease
- Remote infection, infectious endocarditis
- Rheumatic fever
- Seronegative (no RF) spondyloarthropathies (ankylosing spondylitis, IBD, psoriatic, reactive arthritis)
- Rheumatoid arthritis, SLE
- Sarcoidosis, amyloidosis
Periarticular (mimic joint involvement)
- Cellulitis
- Tendonitis
- Bursitis
Pediatric
- Transient (Toxic) Synovitis (Hip)
- Slipped Capital Femoral Epiphysis (SCFE)
- Legg Calve Perthes Disease
References
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