11 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Carpal Tunnel Syndrome ... Anterior Shoulder ... Dermatomes #Myotomes #diagnosis
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
bones should be ... • Due to injury ... #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Axillary nerve injury ... , bony Bankart lesions ... Dislocation #Anterior #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
tea cup") which should ... , median nerve injury ... #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... • Bursitis • IBD ... • Sciatica • Tarsal ... Trauma • Crush injury ... lower #extremity #msk
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
HAGL) can be a cause ... WITHOUT Bankart lesion ... capsuloligamentous injury ... mri #clinical #Radiology ... #diagnosis #msk
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
, acute carpal tunnel ... syndrome, soft ... Colles #Distal #Radiology ... #XRay #Diagnosis ... #MSK
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
Finger deformity caused ... : Hyperflexion injury ... Mallet #Finger #Radiology ... #XRay #Diagnosis ... #Orthopedics #MSK
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
• Nephrotic Syndrome ... Ischemic Liver, IBD ... atherosclerotic lesions ... antibodies (APLS should ... Vasculitis • Injury
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Presentation: Injury ... than 2/3 of the cross-sectional ... NMO-IgG (anti-AQP4) should ... , MOG-IgG test should ... #management #neurology