5 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Syndrome - Low back pain ... saddle (perineal) anesthesia ... #diagnosis #neurology ... #leg #physicalexam
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Sensory loss below ... reflex. saddle anesthesia ... . leg weakness and ... #Syndromes #diagnosis ... signs #symptoms #msk
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework ... #diagnosis #lower ... #extremity #msk ... #physicalexam
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Findings Compression/injury ... rarely follow dermatomal ... • Before diagnosis ... Negative Straight Leg ... MeralgiaParesthetica #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
spared in this injury ... regimental badge" anesthesia ... #diagnosis #neurology ... #sensory #motor ... #arm #physicalexam