7 results
VON-CHOP Mnemonic for Orthopedic Emergencies
V - Vascular compromise (eg ischemic leg)
O - Open fracture
N - Neurological
VON-CHOP Mnemonic for Orthopedic ... cauda equina) ... - Compartment syndrome ... H - Hip dislocation ... #Emergencies #diagnosis
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Diagnosis Framework ... • Sciatica • Tarsal ... Herpes zoster - HIV ... #lower #extremity ... #msk #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Conditions: • Cauda Equina ... Syndrome - Low ... Dermatomes #Myotomes #diagnosis ... #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Cauda Equina Syndrome ... syndrome (CES) ... cord infarct • HIV ... myelopathy • Transverse ... #diagnosis #causes
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Carpal Tunnel Syndrome ... #UpperLimb #Extremity ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm #physicalexam
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
paralysis of all extremity ... Weakness: Starts in legs ... Reflexes: Arms or legs ... Guillain-Barre Diagnosis ... roots and cauda equina
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential Diagnosis ... roots -> Cauda equina ... sclerosis - Transverse ... MCTD, Sjogren syndrome ... , lower extremity