26 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... ) Finger: • Mexion ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... sleeping as in this case ... Nerve #Palsy #PhysicalExam ... orthopedics #msk #sports ... #neurology
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... carpal tunnel syndrome ... injury) • ED Management ... reduction using finger ... Radiology #XRay #Diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
dorsally and no longer ... injury • ED Management ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
side of the wrist ... consisting of finger ... #Test #Reflex #neurology ... clinical #video #physicalexam ... orthopedics #msk #sports
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
demonstrating Radial ... Nerve Palsy as cause ... nerve palsy with finger ... clinical #video #physicalexam ... #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... • Weakness: Starts ... /constipation, hyponatremia ... #diagnosis #management ... #treatment #neurology
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Hyponatremia - Diagnosis ... is usually caused ... demyelination syndrome ... #Treatment #management ... #nephrology #sodium
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
- Differential Diagnosis ... Summary Causes ... Hyperuricemia • Hyponatremia ... associated free radicals ... #Management #causes
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
Well-localized, sharp, short ... regional pain syndrome ... Pain #Mechanisms #Neurology ... #Differential #Diagnosis ... #Algorithm #Causes