12 results
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
or nerve root Symptoms ... of Joint Disease ... #Pain #MSK #rheumatology ... #approach #workup ... #differential #diagnosis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
- Differential Diagnosis ... “Pseudogout” - Calcium ... should have other symptoms ... #Disorders #msk ... #Differential #Diagnosis
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
Pain - Diagnostic ... ), RA, crystal disease ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... crystals (gout) or calcium ... profile (e.g., calcium ... #laboratory #workup ... #diagnosis #testing
Chondrocalcinosis: Calcium Pyrophosphate Dihydrate (CPPD) Deposition Disease

 - Acute CPPD precipitation into the joint space ->
Chondrocalcinosis: Calcium ... polyarticular arthritis ... affected — e.g., wrist ... #Signs #Symptoms ... Pathophysiology #Diagnosis
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
(shoulders, wrists ... • Underlying disease ... precipitates with calcium ... Gout #Comparison #rheumatology ... #Diagnosis
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... constitutional symptoms ... Rheumatologic Disease ... #Diagnosis #MSK ... #rheumatology #
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
swelling in weird joints ... (shoulders, wrists ... culture used to diagnose ... #Rheumatology # ... diagnosis #management
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
Multi-system autoimmune disease ... distal to elbows/wrists ... Musculoskeletal: joint ... #diagnosis #signs ... #workup
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms ... , Arthritis, myalgia ... thiazidic, PPI, ACE, calcium-b ... Evolution: Chronic disease ... #diagnosis #management