14 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Fever/Chills/Joint ... (1%) - Watch out ... Gout - Pseudo ... gout - Osteoarthritis ... #msk #physicalexam
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... Myeloma - punched out ... intracortical Brodie abscess ... #Bone #Tumors #Diagnosis ... Radiology #XRay #msk
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
occur around the knee ... Myeloma - punched out ... intracortical Brodie abscess ... #Differential #Diagnosis ... Radiology #XRay #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
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
- Differential Diagnosis ... Crystalline - Gout ... “Bamboo Spine” Fusion ... Erythematosus (SLE), should ... #Disorders #msk
Purulent Ankle Joint on POCUS
Young patient 2 weeks status post ORIF of ankle fracture presents with
on POCUS Young ... ORIF of ankle fracture ... flowing in and out ... #ultrasound #msk ... infected #pus #abscess
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
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - ... analysis: • MSU ... : Gout • CPPD: ... Interpretation #diagnosis ... #septic #joint
Baker's Cyst on POCUS 
63yo w p/w pain and swelling behind knee.  Probe on knee
outpouching from joint ... dx) that pops out ... Global Ultrasound ... #ultrasound #knee ... #clinical #msk
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 ... #MSK #rheumatology