9 results
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
terminal extensor tendon ... Exam: Swollen and tender ... Mallet #Finger #Radiology ... #XRay #Diagnosis ... #MSK
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Axillary Nerve Shoulder ... Gluteal Nerve Knee ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
strength of muscle, tendon ... on axillary x-ray ... #Dislocation #Diagnosis ... signs #symptoms #msk ... #orthopedics #pathophysiology
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
Discharge with orthopedic ... Dislocation #IPJoint #Radiology ... #XRay #Diagnosis ... Management #Hand #Orthopedics ... #MSK
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Anterior Shoulder ... Dislocation #Anterior #Radiology ... #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
capitate ("apple") should ... tea cup") which should ... Wrist #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
all carpal bones should ... Thomas" sign to diagnosis ... all carpal bones should ... #XRay #Diagnosis ... #Sports #MSK
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
- Differential Diagnosis ... Legg-Calve-Perthes Disease Knee ... Patella (e.g., Tendon ... Deformity #Limp #MSK ... #Algorithm #Orthopedics
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gouty Arthritis) - MSK ... • This case should ... THE X-RAY! ... Giant Cell Tumor Tendon ... #diagnosis #msk