14 results
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
birefringent crystals), Gout ... #Diagnosis #Differential ... Analysis #Table #Aspiration ... #Pseudogout #Septic ... #Infective #Arthritis
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
does not rule out ... 50,000 #Diagnosis #Differential ... Analysis #Table #Aspiration ... #Pseudogout #Septic ... #Infective #Arthritis
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:
Synovial Fluid Analysis ... Joint #Syonvial #Fluid ... Analysis #Table #Aspiration ... #Pseudogout #Septic ... #Infective #Arthritis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... Monoarthritis • Septic ... Crystalline - Gout ... Crystals - “Pseudogout ... within 1 month of infection
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
analysis: • MSU ... : Gout • CPPD: ... Pseudogout Additional ... blood/synovial fluid ... #joint #fluid #
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
(1 joint): • Septic ... • WBC >20k: Septic ... with bacterial infection ... #Joint #Pain #MSK ... approach #workup #differential
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Monoarticular • Gout ... Podagra, Tophi) • Pseudogout ... Genitourinary Infection ... -4 joints) • Gout ... Inflammatory #JointPain #MSK
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... 2000 in synovial fluid ... /Pseudogout) ... /Pseudogout Chronic ... #Diagnosis #MSK
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... - DDX: - Infection ... Knee Effusions - Septic ... Effusions #causes #differential ... #diagnosis #msk
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Arthritis • Gout ... /pseudogout • ... Leg Pain: • Infection ... Poikilothermia • Septic ... lower #extremity #msk