6 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
• Fracture • Arthritis ... • Arthritis ... stenosis/nerve compression ... Herpes zoster - HIV ... extremity #msk #physicalexam
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 ... Seronegative Reactive Syndrome ... Ligamentous injuries - Meniscal ... Knee #Effusions #causes ... diagnosis #msk #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
due to severe compression ... - Emergency Causes ... cord infarct • HIV ... lumbar stenosis • Vascular ... • Provocative Tests
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... and bullous or vesicular ... • Cogan Syndrome ... retinopathy Lab Tests ... Cryoglobulins • HIV
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
DISLOCATION: ~25% cases ... nerve injury (25%) TEST ... Check hip and ankle ... Compartment syndrome ... special ligament/meniscus
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Diagnostic Tests ... weakness + atrophy- Hip ... • Nonerosive arthritis ... statins - probably caused ... muscle disease/muscular