65 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
mycobacterial), RA, crystal ... reactive arthritis, gout ... culture, look for crystals ... Spondyloarthropathies, gout ... Parallel, yellow = gout
Gout: Pathogenesis and Clinical Findings
 - Conditions of rapid cell turnover: hemolysis, psoriasis, lymphoproliferative disorders
 -
Gout: Pathogenesis ... phagocytose the crystal ... Needle-shaped uric acid crystals ... Chronic tophaceous gout ... Complications #Gout
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Differential Diagnosis Algorithm ... Crystalline - Gout ... - Uric Acid Crystals ... Pyrophosphate Dihydrate Crystals ... Differential #Diagnosis #Algorithm
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - Joint ... Clarity, WCC, PMN, Crystals ... ), Gout (negatively ... birefringent crystals ... Arthrocentesis #Joint
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
swelling in weird joints ... Acute CPP Crystal ... MCP, or shoulder joints ... deposition in joints ... attacks • Other joints
Gouty arthritis of the shoulder joint

50 yo male presented with shoulder pain.

Note double contour sign at
Gouty arthritis ... of the shoulder joint ... deposition of crystal ... Shoulder #Clinical #POCUS ... #Ultrasound #Crystals
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Differential Diagnosis Algorithm ... 4 tests for the ... AC joint: 1. ... after cross-arm test ... Differential #Diagnosis #Algorithm
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint ... Differential Diagnosis Algorithm ... Monoarticular • Gout ... ) • Gout • Psoriatic ... Differential #Diagnosis #Algorithm
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
synovial fluid • Gout ... intracellular urate crystals ... (gout) or calcium ... pyrophosphate dihydrate crystals ... of the affected joint
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Approach to Joint ... present both at rest ... improves quickly with rest ... inflammatory arthritides Crystal ... ochronosis and crystal