16 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Perilunate Dislocation ... with the distal radius ... In perilunate dislocation ... with the distal radius ... , triquetrum), radial
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Scapholunate Dissociation ... scapholunate dissociation ... injuries: distal radius ... perilunate or lunate dislocation ... #Scapholunate #Dissociation
Orthopedic Fracture Classification - Upper Limbs
Neer Classification of Proximal Humeral head Fractures:
 • 1-part
 • 2-part:
radioulnar joint and dislocation ... with dislocation ... with dislocation ... with concomitant dislocation ... first metacarpal bone
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Posterior Elbow Dislocation ... common major joint dislocation ... lateral epicondyle > radial ... triad = posterior dislocation ... + radial head fracture
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... common carpal bone ... injuries: Perilunate dislocation ... , distal radius ... #Diagnosis #Management
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Extension C6, C7, C8 (radial ... Extension - C7, C8 (radial ... damage to the radial ... nerve in the radial ... Anterior Shoulder Dislocation
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
RADIAL HEAD FRACTURE ... Radial head fractures ... non-displaced radial ... injury, elbow dislocation ... #RadialHead #Radius
Pediatric Elbow Injuries - Elbow Xrays

Check the fat pads on the lateral projection:
1. A displaced anterior
capitellum: a radial ... head dislocation ... The normal radius ... 2-3 cm of the radius ... the shaft of the radius
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder Dislocation ... Pathogenesis, clinical ... Anterior Shoulder Dislocation ... view -> Dislocation ... Anterior #Shoulder #Dislocation
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
ulnar shaft with radial ... head dislocation ... and missing the radial ... head dislocation ... Ulnar #Radiology #XRay