11 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
On lateral wrist ... fracture, median nerve ... #Wrist #Carpal ... #Radiology #XRay ... #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
duck sign" on lateral ... Complications are ... injuries: Perilunate dislocation ... , distal radius ... #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
box, pain with wrist ... injuries: distal radius ... #TerryThomas #Wrist ... #Radiology #XRay ... #Sports #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... fracture, median nerve ... injury, acute carpal ... Distal #Radiology #XRay ... #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
not seen on x-ray ... fractures that are ... Scaphoid #Fracture #Wrist ... #XRay #Diagnosis ... #Sports #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Fractures (medial/lateral ... anterior interosseous nerve ... Posterior long arm ... Posterior #Radiology #XRay ... #Sports #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
Tenderness to lateral ... injury, elbow dislocation ... II-IV, pending orthopedic ... Elbow #Radiology #XRay ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
nerve in the radial ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation ... sensory #motor #arm ... #physicalexam
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
, outstretched arm ... Acute loss of lateral ... Structural damage to nerves ... signs #symptoms #msk ... #orthopedics #pathophysiology
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
head dislocation ... posterior interosseous nerve ... Posterior long arm ... Ulnar #Radiology #XRay ... #Proximal #MSK