6 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Dermatomes and Myotomes ... Conditions: • Cauda ... saddle (perineal) anesthesia ... Extremity #Dermatomes #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
 •
L5/S1 with an inferior ... • S - Saddle anesthesia ... Differential Diagnosis ... #differential #diagnosis ... #causes #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Dermatomes and Myotomes ... Anterior Shoulder ... regimental badge" anesthesia ... Extremity #Dermatomes #Myotomes ... #diagnosis #neurology
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
level of lesion (anterior ... dysfunction, saddle anesthesia ... LMN types) • Cauda ... spinalcord #syndromes #diagnosis ... #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... involvement Cauda ... loss - Saddle anesthesia ... #differential #diagnosis ... #neurology
Top left: probe is positioned in the longitudinal paramedian plane. Top right: sacrum is seen as
on the right (caudad ... longitudinal ligament-anterior ... PainManagement #Anatomy ... #POCUS #Spinal ... #Epidural #Anesthesia