13 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
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Monoarthritis - ... - Gonococcal infection ... Infection (Chronic ... Sarcoid - Erosive OA ... @AnnKumfer #Monoarthritis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Diagnosis Algorithm Monoarthritis ... within 1 month of infection ... • Psoriatic arthritis ... Osteoarthritis (OA ... polyarthritis #monoarthritis
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
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
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 ... SLE, psoriatic arthritis
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
are involved (monoarthritis ... • Acute Monoarthritis ... By: - Chronic Infection ... Rubella Bacterial Infection ... Monoarticular #Monoarthritis
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
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
resulting in an acute arthritic ... Acute CPP Crystal Arthritis ... Osteoarthritis with CPPD: OA ... diagnose concomitant infection ... Diagnose concomitant infection
Risk Factors for Septic Arthritis
Contiguous spread

Skin infection, cutaneous ulcers

Direct inoculation

Previous intraarticular injection

Prosthetic joint: early and delayed
spread Skin infection ... early and delayed (Table ... immunodeficiency virus infection ... Prosthetic joint: late (Table ... Diagnosis #Septic #Infective