27 results
Arthrocentesis - Joint Fluid Analysis

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

Viscosity of synovial
Arthrocentesis of ... rule out septic arthritis ... Effusion #Analysis #Table ... Pseudogout #Septic #Infective ... #Arthritis #Interpretation
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Lyme), reactive arthritis ... *Always do arthrocentesis ... with bacterial infection ... prosthetic joint infection ... #Joint #Pain #MSK
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:
#Diagnosis #Arthrocentesis ... Effusion #Analysis #Table ... Pseudogout #Septic #Infective ... #Arthritis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
within 1 month of infection ... • Psoriatic arthritis ... Osteoarthritis (OA ... Amy Chung, MD, MSc ... Joint #Disorders #msk
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Differential Diagnosis Infection ... - Gonococcal infection ... Infection (Chronic ... , psoriatic arthritis ... Sarcoid - Erosive OA
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - Arthrocentesis ... Inflammatory arthritis ... analysis: • MSU ... Knee #Effusions #Arthrocentesis
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Myalgia • Viral Arthritis ... Disseminated Gonoccocal Infection ... • Primary HIV Infection ... • Septic Arthritis ... Infectious #JointPain #MSK
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Genitourinary Infection ... • Rheumatoid Arthritis ... Asymmetric (Psoriatic Arthritis ... • Psoriatic Arthritis ... Inflammatory #JointPain #MSK
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
. degenerative arthritis ... Manifestations: • Infection ... e.g. psoriatic arthritis ... , reactive arthritis ... #primarycare #table