10 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Scapholunate Dissociation ... diagnosis scapholunate dissociation ... • Due to injury ... #Scapholunate #Dissociation ... #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Perilunate Dislocation ... On lateral wrist ... In perilunate dislocation ... summary: • Dorsal dislocation ... #Perilunate #Dislocation
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Dislocation - ED ... common major joint dislocation ... rotated, extended arm ... #Dislocation #Anterior ... #MSK
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Dislocation: Pathogenesis ... , outstretched arm ... Dislocation ... x-ray view -> Dislocation ... #Dislocation #Diagnosis
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Posterior Elbow Dislocation ... common major joint dislocation ... triad = posterior dislocation ... MetroHealth_EM #Elbow #Dislocation ... #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
" on lateral x-ray ... Complications are ... injuries: Perilunate dislocation ... #Orthopedics #Sports ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Dislocation - May ... Myotomes #diagnosis #neurology ... sensory #motor #arm
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
head fractures are ... anterior sail sign ... Tenderness to lateral ... , elbow dislocation ... #Orthopedics #MSK
Pediatric Elbow Injuries - Elbow Xrays

Check the fat pads on the lateral projection:
1. A displaced anterior
fat pad (sail sign ... joint effusions are ... a significant injury ... of the humerus should ... a radial head dislocation
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Presentation: Injury ... extensors of the arms ... Hyperreflexia develops later ... signs and/or symptoms ... diagnosis #management #neurology