20 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... Fever/Chills/Joint ... pain/Night sweats ... Reactive Syndrome - Acute ... differential #diagnosis #msk
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Approach to Joint ... : • Joint • ... : • Acute or chronic ... e.g., congenital hip ... #Pain #MSK #rheumatology
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Approach to Joint ... Pain - Diagnostic ... Like in this case ... - parvovirus, HIV ... #Joint #Pain #MSK
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Pain • Viral ... Articular - Acute ... Infectious #JointPain #MSK ... #Orthopedics #Causes
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Arthritis ... • Sacroiliac Joint ... Pain • Valgus ... position of knee ... signs #diagnosis #msk
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
nociceptors -> Pain ... in Rheumatoid arthritis ... commonly affects the knee ... hip and L/C-spine ... Comparison #Versus #MSK
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Approach to Joint ... Pain - Arthritis ... spine, shoulders, hips ... Joint #pain #Differential ... #Diagnosis #MSK
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint ... Pain - Differential ... Rheumatic Fever Acute ... Inflammatory #JointPain #MSK ... #Orthopedics #Causes
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Framework Bone/Joint ... Causes of Leg Pain ... onset - Intense joint ... Inability to move the joint ... lower #extremity #msk
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Other Causes ... JointHip Dysplasia ... Legg-Calve-Perthes Disease Knee ... Joint • Patellofemoral ... Deformity #Limp #MSK