114 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... hand" ± Horner Syndrome ... Wrist drop - Occurs ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology
Rock Paper Scissors - Assessment of Nerve Damage in Upper Limb Injuries
Rock - Median Nerve
 •
Assessment of Nerve ... Rock - Median Nerve ... • Extension of wrist ... adduction) OK Sign ... UpperExtremities #diagnosis #neurology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
commonly fractured carpal ... "pooping duck sign ... "pooping duck sign ... ulna, pain with wrist ... Triquetrum #Fracture #Wrist
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
spacing between all carpal ... "Terry Thomas" sign ... ("Terry Thomas sign ... box, pain with wrist ... #TerryThomas #Wrist
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... , pain with wrist ... associated injuries: Carpal ... fracture, median nerve ... #Carpal #Radiology
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
elbow, wrist and ... space and the wrist ... not involve a wrist ... ulnarly deviated wrist ... Anatomy #diagnosis #neurology
Carpal Tunnel Syndrome 
Compression of median nerve 
Risk Factors 
 • Obesity 
 • Female gender
Carpal Tunnel Syndrome ... Compression of median nerve ... #CarpalTunnel #Syndrome
Horner's Syndrome
 • Anhidrosis: Diminished sweating of ipsilateral face and neck
 • Miosis: Loss of sympathetic
Horner's Syndrome ... to the superior tarsal ... to oculomotor nerve ... neudrawlogy #Horners #Syndrome ... #diagnosis #neurology
Phalen's Test for Carpal Tunnel Syndrome

Phalen's test evaluates for carpal tunnel syndrome. 
Fully flex wrists and
Phalen's Test for Carpal ... Tunnel Syndrome ... tunnel syndrome ... Fully flex wrists ... #Wrist #PhysicalExam
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... - Radial Nerve Palsy ... of the radial nerve ... trauma_modern #Wrist ... #msk #sports #neurology