11 results
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Myalgia • Viral Arthritis ... Fasciitis • Septic ... Onset • Septic ... Onset • Fungal ... Infectious #JointPain #MSK
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Inflammatory arthritis ... tenderness - No joint deformity ... to bacterial, fungal ... #Joint #Pain #MSK ... #rheumatology #
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Inflammatory arthritis ... Culture: Negative Septic ... analysis: • MSU ... and culture • Fungal ... : Fungal stain and
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Mycobacterial • Fungal ... - Autoimmune Rheumatologic ... tuberculosis) • Fungi ... Differential #Diagnosis #MSK ... #rheumatology #
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Bone Deformity / ... Infection • Septic ... Arthritis • Cortical ... Dwarfism #Bone #Deformity ... #Limp #MSK #Differential
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Septic ... Arthritis: - ... Alphavirus - Fungi ... : - Reactive arthritis ... differential #diagnosis #msk
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
(1 joint): • Septic ... Lyme), reactive arthritis ... • WBC >20k: Septic ... #Joint #Pain #MSK ... #rheumatology #
Acromioclavicular (AC) Joint Septic Arthritis on POCUS

IVDU with severe left shoulder pain.  Can fully range
Arthritis on POCUS ... arthritis rare. ... arthritis. ... #POCUS #clinical ... #ultrasound #MSK
Osteomyelitis / Septic Arthritis on POCUS

A diabetic adult presents with pain and fever at this site.
Osteomyelitis / Septic ... Arthritis on POCUS ... Osteomyelitis #Septic ... #POCUS #ultrasound ... #msk #radiology
Purulent Ankle Joint on POCUS
Young patient 2 weeks status post ORIF of ankle fracture presents with
Ankle Joint on POCUS ... found to have septic ... arthritis and osteomyelitis ... #Ankle #Joint #POCUS ... clinical #ultrasound #msk