15 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Effusions - Septic ... (1%) - Watch out ... Gout - Pseudo ... gout - Osteoarthritis ... #msk #physicalexam
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Monoarthritis • Septic ... Crystalline - Gout ... “Bamboo Spine” Fusion ... Erythematosus (SLE), should ... #Disorders #msk
Acromioclavicular (AC) Joint Septic Arthritis on POCUS

IVDU with severe left shoulder pain.  Can fully range
Septic Arthritis ... Diagnosis? ... #Effusion #POCUS ... #clinical #ultrasound ... #MSK
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gout (Gouty Arthritis ... • This case should ... • Gout can present ... Gout is relatively ... #Gouty #Arthritis
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
): • Septic joint ... , gout or pseudogout ... Spondyloarthropathies, gout ... Parallel, yellow = gout ... #Joint #Pain #MSK
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - ... Inflammatory arthritis ... analysis: • MSU ... : Gout • CPPD: ... #septic #joint
Purulent Ankle Joint on POCUS
Young patient 2 weeks status post ORIF of ankle fracture presents with
ORIF of ankle fracture ... flowing in and out ... found to have septic ... arthritis and osteomyelitis ... #ultrasound #msk
MTP Gout Effusion on POCUS
50s male with DM/HTN (no hx gout) and great toe pain-MTP joint.
MTP Gout Effusion ... Just tx as gout? ... POCUS revealed joint ... MSU crystals=Gout ... #POCUS #ultrasound
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
axial (spine, shoulders ... Very hard to get out ... Crystal induced (Gout ... fever • Lyme • Gout ... #Diagnosis #MSK
Lipohemarthrosis on POCUS
Pain in L knee after injury. Long axis in suprapatellar recess. What's the diagnosis?
Answer:
Lipohemarthrosis on POCUS ... What's the diagnosis ... liquid layer in the effusion ... #clinical #ultrasound ... #msk #knee