4 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... damage to peroneal nerve ... canal and neural ... Myotomes #diagnosis #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... AVM • Multilevel ... extremity muscle ... extremity weakness ... diagnosis #causes #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Triceps power is ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
deficiency etc) • Spinal ... • Sciatica • Tarsal ... cyanosis - Cool extremity ... differential #diagnosis #lower ... #extremity #msk