10 results
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Pain - Differential ... rash) • Primary HIV ... Infectious #JointPain #MSK ... #Orthopedics #Causes
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Diagnosis Algorithm ... JointHip Dysplasia ... Legg-Calve-Perthes Disease Knee ... Deformity #Limp #MSK ... #Orthopedics #Causes
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Lyme), reactive arthritis ... - parvovirus, HIV ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup #differential
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Inflammatory arthritis ... Noninflammatory arthritis ... e.g., congenital hip ... #Pain #MSK #rheumatology ... approach #workup #differential
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 ... #Degenerative #Comparison ... #Versus #MSK #JointDisease
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
with temporal arteritis ... /or joint aches ... Myopathies #myopathy #differential ... #diagnosis #comparison ... #rheumatology
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gout (Gouty Arthritis ... ) - MSK Radiology ... diagnosed ON THE X-RAY ... Differential diagnosis ... #rheumatology
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... predispose to other orthopedic ... common sites: hip ... XR, MRI to dx and ... Osteomyelitis / Septic Arthritis
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... spine, shoulders, hips ... Joint #pain #Differential ... #Diagnosis #MSK ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
hip • Muscle strength ... vesicular eruption • Joints ... gray matter changes ... Palpable purpura, joint ... #Diagnosis #Rheumatology