20 results
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
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Distal Radius Fracture ... Distal radius ... variable gross wrist ... , median nerve injury ... #Orthopedics #MSK
Rock Paper Scissors - Assessment of Nerve Damage in Upper Limb Injuries
Rock - Median Nerve
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Finger Flexion ... • Extension of ... wrist & MCP joint ... muscles of hand (finger ... #Injury #UpperExtremities
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
dorsally and no longer ... extension • ... styloid fracture ... , median nerve injury ... Orthopedics #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
pain with wrist ... flexion and extension ... radius or ulna ... #Wrist #Carpal ... Orthopedics #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... extension • Possible ... associated injuries: distal ... radius fracture ... Orthopedics #Sports #MSK
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
and digital extension ... When clinically ... nerve injury ... nerve injury ... extension) but
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
joint needs to be clinically ... tendon distal to ... : Hyperflexion injury ... with axial load ... #Orthopedics #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
ligaments (prevent radial ... to the dorsal distal ... to the palmar distal ... Hyperextension injury ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... ) Finger: • Mexion ... nerve in the radial ... spared in this injury ... Carpal Tunnel Syndrome
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
Nerve Palsy as ... finger/wrist drop ... #Radial #Nerve ... #Palsy #Drop #clinical ... #video #physicalexam