11 results
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
and PIP joints ... extension; flexor digitorum ... ), mallet finger ... Dislocation #IPJoint #Radiology ... #Orthopedics #MSK
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
terminal extensor tendon ... tender DIP joint ... #Radiology #XRay ... Diagnosis #Management #Hand ... #Orthopedics #MSK
Elson's Test - Extensor Digitorum Finger Examination

Elson's test evaluates for partial or complete tear of the
partial or complete tear ... extend at the PIP ... #Hand #PhysicalExam ... video #sports #msk ... #orthopedics #extensor
Boyes' Test - Flexor Digitorum Superficialis Finger Examination

Evaluate the injured finger for flexion.
Inability to flex the
Test - Flexor Digitorum ... partial or complete tear ... #hand #PhysicalExam ... video #sports #msk ... #orthopedics #flexor
Flexor Digitorum Profundus Test

Isolate the distal interphalangeal joint over the edge of the table and observe
to flex at the DIP ... partial or complete tear ... #Hand #PhysicalExam ... video #sports #msk ... #orthopedics
Haglund Syndrome - MSK Radiology
Imaging Findings:
 • The Haglund Deformity (enlarged superior margin calcaneal posterior process)
- MSK Radiology ... Partial undersurface tear ... T2-hyperintense and ... Differential diagnosis ... #diagnosis #msk
Posterior Ankle Impingement (Os Trigonum) Syndrome - MSK Radiology
Imaging Findings:
 • Os trigonum which has marrow
(Os Trigonum) Syndrome ... - MSK Radiology ... hallucis longus Differential ... syndesmotic ligament tear ... of the achilles tendon
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Adjacent bursa • Tendon ... e.g., meniscal tears ... e.g., congenital hip ... #Joint #Pain #MSK ... approach #workup #differential
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... signals in the inner ... II ○ Susac’s syndrome ... Noise trauma ○ MS ... zoster virus ○ HIV
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... episcleritis as well as inner ... ear disease ... diminished, or tender ... Cryoglobulins • HIV