5 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
L2, L3, L4 • Ankle ... Conditions: • Cauda ... Syndrome - Low back pain ... Commonly caused ... such as fibular fracture
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... cord infarct • HIV ... • Provocative Tests ... absent anal wink test ... #diagnosis #causes
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... • Fracture • Arthritis ... Herpes zoster - HIV ... #differential # ... #msk #physicalexam
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
Fractures-> Femur ... Check hip and ankle ... Avulsion fractures ... SEGOND FRACTURE: ... Avulsion fracture
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... Lower roots -> Cauda ... compression by fractured ... Non-compressive Spinal Cord Causes ... #algorithm