10 results
Rock Paper Scissors - Assessment of Nerve Damage in Upper Limb Injuries
Rock - Median Nerve
 •
FracturesFinger ... • Extension of wrist ... at DIP joint ... UpperExtremities #diagnosis ... #neurology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
, pain with wrist ... Management: Pain ... #Wrist #Carpal ... Radiology #XRay #Diagnosis ... #Sports #MSK
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Radial Nerve Wrist ... Abduction T1 Ulnar ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
of a fracture does ... caused by disruption ... • ED Management ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... , C8 (radial) Finger ... Abduction - C8-T1 (ulnar ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
prevent radial and ulnar ... tendon), mallet finger ... Radiology #XRay #Diagnosis ... #Management #Hand ... #Orthopedics #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
dorsally and no longer ... injuries: Carpal fracture ... radial styloid fracture ... Radiology #XRay #Diagnosis ... #Sports #MSK
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 ... Guillain-Barre Diagnosis ... #management #treatment ... #neurology
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
- Differential Diagnosis ... Framework and Management ... Summary Causes ... Infection - Viral (HIV ... #Management #causes
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
), is the must ulnar ... little, or pinky, finger ... ECU Subluxation diagnosed ... relevant body parts ... #msk