14 results
Rock Paper Scissors - Assessment of Nerve Damage in Upper Limb Injuries
Rock - Median Nerve
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Extension of ... wrist & MCP joint ... Small muscles of hand ... Scissors #Nerve #Injury ... UpperExtremities #diagnosis #neurology
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
Common Hand Fractures ... Mallet finger - injury ... of extensor tendon ... drdevradiology #Hand ... #Radiology #Wrist
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
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Distal Radius Fracture ... onto outstretched hand ... variable gross wrist ... , scapholunate and ... #Distal #Radiology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
onto outstretched hand ... extension • ... styloid fracture ... , median nerve injury ... #Carpal #Radiology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
dorsum of the hand ... flexion and extension ... dislocation, distal radius ... #Wrist #Carpal ... #Radiology #XRay
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... onto outstretched hand ... box, pain with wrist ... extension • Possible ... injuries: distal radius
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
and digital extension ... the wrist and elbow ... nerve injury ... injury ... Anatomy #diagnosis #neurology
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
Inverted Supinator Test ... identifying a lesion ... extension and wrist ... Inverted #Supinator #Test ... #Reflex #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
C6, C7, C8 (radial ... Pronation - C7, C8 Wrist ... Horner Syndrome Wrist ... spared in this injury ... Myotomes #diagnosis #neurology
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
associated avulsion fractures ... ligaments (prevent radial ... Hyperextension injury ... Dislocation #IPJoint #Radiology ... Diagnosis #Management #Hand