11 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... nerve in the radial ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
and digital extension ... the back of the arm ... • Thus a PIN palsy ... extension) but ... #diagnosis #neurology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... fracture, median nerve ... injury • ED Management ... #Carpal #Radiology ... #XRay #Diagnosis
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
Complications are ... ulna, pain with wrist ... flexion and extension ... dislocation, distal radius ... #XRay #Diagnosis
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 ... #Diagnosis #Management
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Thomas" sign to diagnosis ... extension • Possible ... injuries: distal radius ... #Radiology #XRay ... #Diagnosis #Management
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Stimulation of nerve ... Swelling notable on Xray ... boggy" joints, esp carpal ... drift of fingers, radial ... signs #symptoms #diagnosis
In this video, you see right sided atrophy, right sided deviation, and fasiculations R>L, indicating a
In this video, you ... , indicating a peripheral ... 12th nerve palsy ... nerves VII, IX/ ... the hypoglossal canal
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
cross-reacts with peripheral ... or the axon of peripheral ... paralysis of all extremity ... , facial, respiratory ... #management #neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Microglial cells are ... Clonus, Spasticity, Extensor ... activity between nerve ... neurons - IV free radical ... #management