21 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
aracteristic "claw hand ... spared in this injury ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm ... #physicalexam
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
, wrist and digital ... When clinically ... injury ... injury ... #Anatomy #diagnosis
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... fracture, median nerve ... tunnel syndrome ... reduction using finger ... Radiology #XRay #Diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
onto outstretched hand ... fracture, median nerve ... injury • ED ... Radiology #XRay #Diagnosis ... #Orthopedics #Sports
OK Sign - Interosseous Nerve Injury

Patients with compromise of anterior interosseous nerve will not be able
OK signs are seen ... #Injury #Finger ... #Hand #PhysicalExam ... #clinical #video ... #sports #msk #orthopedics
Median Nerve Injury and Anhidrosis
Note dry skin that precisely matches a median nerve distribution (spares ulnar
Median Nerve Injury ... distribution (spares ... gunshot wound to the wrist ... wounds on volar wrist ... #Clinical #Photo
Froment's Sign - Ulnar Nerve Injury

Patients with compromise of the ulnar nerve will not be able
Injury Patients ... third fingers, ... #Injury #Hand # ... PhysicalExam #clinical ... #video #sports
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Clinical ... • Weakness: Starts ... Can begin in arms ... Absent Reflexes: Arms ... Paresthesias: Hands
Nail Pathologies - Findings in or Near Nails

Paronychia 

A superficial infection of the proximal and lateral
infection of the hand ... Clinically ... seen in Reiter's syndrome ... Abnormal #Pathology #Diagnosis ... #PhysicalExam #
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
- Differential Diagnosis ... sterile and are ... Irregular pustules on hands ... Burrows between fingers ... , volar wrists