The diagnosis of the Milwaukee Shoulder Syndrome (MSS) often involves exclusion of other arthropathies.
Condition |
Evidence for the Diagnosis |
traumatic arthropathy |
history of trauma to the shoulder |
arthropathy of late syphilis |
positive syphilis serologic testing |
septic arthritis |
positive Gram stain and culture |
osteonecrosis |
necrotic bone on biopsy, risk factors for osteonecrosis |
neuropathic arthropathy |
syringomyelia, neurologic exam, electromyography |
gout |
urate crystals |
pseudogout |
calcium pyrophosphate dihydrate (CPPD) crystals in other joints |
rheumatoid arthritis |
rheumatoid factors, anti-citrullinated peptide antibodies |
Specialty: Surgery, orthopedic