10 results
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Ligament • Bone ... : • Acute or chronic ... trauma (e.g., meniscal ... #approach #workup ... #differential #
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... neuropathy so trauma ... #Joint #Pain #MSK ... rheumatology #approach #workup ... #differential #
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 ... Early dz difficult ... Osteomyelitis / Septic Arthritis ... #Joint #Pain #SickleCell
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
after surgery/trauma ... Acute CPP Crystal ... onset of swelling, pain ... shaped • Weakly ... swelling, significant pain
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Pain - Differential ... Pseudogout • Early ... Rheumatic Fever Acute ... JointPain #MSK #Differential ... Diagnosis #Algorithm #Orthopedics
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Vascular Joint Pain ... - Differential ... (Ischemia) - Acute ... fractured long bone ... Diagnosis #Algorithm #Orthopedics
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
after surgery/trauma ... Acute CPP Crystal ... onset of swelling, pain ... Rhomboid shaped • Weakly ... neck pain, fever
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework Bone ... /Joint Causes of ... Immobilization) • Acute ... differential #diagnosis
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
at home or at work ... ) - acute angle ... thrombophilia, neurologic ... Fatal #Dangerous #Deadly ... #Differential
Orthopedic Emergencies
Compartment Syndrome
 • An increase in compartment pressure to the point where tissue perfusion is
Orthopedic Emergencies ... pressure to the point ... event after long bone ... days after an acute ... H/O antecedent trauma