8 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 ... Effusions: - Gout ... - Pseudo gout ... differential #diagnosis #msk
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
CPPD vs Gout ... weird joints (shoulders ... disease states Pathophysiology ... Wrist, MCP, or shoulder ... forefoot, ankles, knees
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Monoarthritis • Septic ... Crystalline - Gout ... • Psoriatic arthritis ... Erythematosus (SLE), should ... Joint #Disorders #msk
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - ... Inflammatory arthritis ... Culture: Negative Septic ... analysis: • MSU ... : Gout • CPPD:
Isolated Anterior Cruciate Ligament (ACL) Injury: Pathogenesis and clinical findings
 • Feeling a "pop"
 • Acute
Isolated Anterior ... • Pain deep in knee ... is "giving out" ... #ACL #Injury #MSK ... #Sports #pathophysiology
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
Gout - Diagnosis ... forefoot, ankles, knees ... frequent attacks • Arthritis ... not possible • Ultrasound ... Dual-energy CT → MSU
Purulent Ankle Joint on POCUS
Young patient 2 weeks status post ORIF of ankle fracture presents with
flowing in and out ... found to have septic ... arthritis and osteomyelitis ... POCUS #clinical #ultrasound ... #msk #infected
TISSUE APPEARANCES ON 
MUSCULOSKELETAL ULTRASOUND 

Bone:
 
Bone is represented as a very bright structure and appears
to fibroadipose septa ... honeycomb’ or ‘pepper pot ... interrogation as it should ... infrapatellar bursa of the knee ... MUSCULOSKELETAL #MSK