64 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
mycobacterial), RA, crystal ... disease, spondyloarthropathies ... culture, look for crystals ... Inflammatory, crystalline disease ... psoriatic arthritis Crystals
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders ... Differential Diagnosis Algorithm ... Gout - Uric Acid Crystals ... Pyrophosphate Dihydrate Crystals ... Differential #Diagnosis #Algorithm
Synovial Fluid Analysis:

Findings (COLOR	TRANSPARENCY	VISCOSITY	WBC COUNT (PER MM3)	PMN CELL COUNT (%)	GRAM STAIN	CULTURE	PCR TEST	CRYSTALS)

By Condition (Normal 
Noninflammatory 
Inflammatory:
STAIN CULTURE PCR TEST ... CRYSTALS) By ... crystalline disease ... noncrystalline disease ... Arthrocentesis #Joint
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - Joint ... Clarity, WCC, PMN, Crystals ... , Bacteria) by Disease ... positively birefringent crystals ... Arthrocentesis #Joint
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Disease: • Pain ... disease must be ... present both at rest ... inflammatory arthritides Crystal ... ochronosis and crystal
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
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
intracellular urate crystals ... pyrophosphate dihydrate crystals ... spondylitis - Sacroiliac joint ... of the affected joint ... • Sacroiliac joint
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
disease Inflammatory ... Joint Disease ... nociceptors -> Pain with rest ... Disease • Motion ... motion (relieved by rest
Chondrocalcinosis: Calcium Pyrophosphate Dihydrate (CPPD) Deposition Disease

 - Acute CPPD precipitation into the joint space ->
CPPD) Deposition Disease ... precipitation into the joint ... Inflammatory response to crystals ... Repeated subacute crystal ... Pseudogout #CPPD #Disease
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
swelling in weird joints ... • Underlying disease ... MCP, or shoulder joints ... deposition in joints ... attacks • Other joints