10 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
WBC <2k: Noninflammatory ... lower limbs) • WBC ... spondyloarthropathies • WBC ... presentation with lower WBC ... #Joint #Pain #MSK
Evaluation of Suprapatellar Knee Effusion (normal knee) on Point of Care Ultrasound (POCUS)

POCUS for knee effusions:
Evaluation of Suprapatellar ... Point of Care Ultrasound ... remember, the suprapatellar ... joint, so scan ... #MSK #POCUS #Clinical
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Viscosity: Low • WBC ... : Variable • WBC ... Viscosity: High • WBC ... : Gout • CPPD: ... diagnosis #septic #joint
Suprapatellar Knee Hemarthrosis on POCUS
Note the supra-patella plica separating the physiological knee fluid from the blood
Suprapatellar Knee ... joint proper. ... TendonImaging #Suprapatellar ... POCUS #clinical #ultrasound ... #msk
Suprapatellar Hematoma on POCUS
Before knee arthrocentesis, be sure fluid is inside joint. Hypoechoic suprapatellar lesion, partly
POCUS Before knee ... fluid is inside joint ... Hematoma #POCUS #ultrasound ... #clinical #msk ... #knee
MTP Gout Effusion on POCUS
50s male with DM/HTN (no hx gout) and great toe pain-MTP joint.
without using ultrasound ... WBC-48K. ... MSU crystals=Gout ... Clinical #POCUS #ultrasound ... #MSK #Toe
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
, erythema and WBC ... effusion with few WBCs ... Crystal induced (Gout ... fever • Lyme • Gout ... Differential #Diagnosis #MSK
Acromioclavicular (AC) Joint Septic Arthritis on POCUS

IVDU with severe left shoulder pain.  Can fully range
Acromioclavicular (AC) Joint ... WBC/CRP/ESR elevated ... Arthrocentesis-64K WBC ... POCUS #clinical #ultrasound ... #MSK
Baker's Cyst on POCUS 
63yo w p/w pain and swelling behind knee.  Probe on knee
outpouching from joint ... dx) that pops out ... intraarticular joint ... Global Ultrasound ... #msk
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
deposition in joints ... attacks • Other joints ... forefoot, ankles, knees ... Fluid Testing: • WBCs ... not possible • Ultrasound