11 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... Fever/Chills/Joint ... Effusions - Septic ... #Effusions #causes ... #msk #physicalexam
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
- Differential Diagnosis ... Monoarthritis • Septic ... Crystalline - Gout ... “Bamboo Spine” Fusion ... #Disorders #msk
Acromioclavicular (AC) Joint Septic Arthritis on POCUS

IVDU with severe left shoulder pain.  Can fully range
) Joint Septic Arthritis ... AC joint septic ... AC joint septic ... #Arthritis #Effusion ... #MSK
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... ): • Septic joint ... • WBC >20k: Septic ... Like in this case ... #Joint #Pain #MSK
MTP Septic arthritis due to non-tuberculous mycobacterium without effusion
We had an immunosuppressed patient with a concerning
MTP Septic arthritis ... History of gout. ... Extremely difficult case ... ultrasound can help ... clinical #pocus #joint
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - ... Inflammatory arthritis ... : Gout • CPPD: ... Interpretation #diagnosis ... #septic #joint
Rheumatoid Arthritis Summary
Overview: chronic, inflammatory symmetric polyarthritis involving small joints of hands/feet, knees, shoulders
Signs & Symptoms:
Rheumatoid Arthritis ... of hands/feet, knees ... effusions, reduced ... narrowing) • Ultrasound ... Methotrexate (MTX
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... suggested by warmth, effusion ... Crystal induced (Gout ... weeks) Can Be Caused ... #Diagnosis #MSK
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
- Differential Diagnosis ... Infection • Septic ... Other Causes ... Legg-Calve-Perthes Disease Knee ... Deformity #Limp #MSK
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... • Gout/pseudogout ... Poikilothermia • Septic ... #differential #diagnosis ... lower #extremity #msk