9 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 ... pain/Night sweats ... (28%) - Gm - bacilli ... Reactive Syndrome - Acute ... differential #diagnosis #msk
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Pain - Differential ... Articular - Acute ... #Infectious #JointPain ... #MSK #Differential
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint ... Pain - Differential ... Rheumatic Fever Acute ... #Inflammatory #JointPain ... #MSK #Differential
Approach to Joint Pain

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

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis ... spine, shoulders, hips ... Gram-negative bacilli ... Joint #pain #Differential ... #Diagnosis #MSK
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
in Rheumatoid arthritis ... commonly affects the knee ... hip and L/C-spine ... Comparison #Versus #MSK ... #JointDisease #JointPain
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... Chronicity: • Acute ... • Acute = Viral ... - parvovirus, HIV ... #Joint #Pain #MSK
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
• Fracture • Arthritis ... syndrome • Arthritis ... Herpes zoster - HIV ... Immobilization) • Acute ... lower #extremity #msk