22 results
Orthopedic Essentials - Spinal Trauma and Spine Classification 
DENIS THREE COLUMN CONCEPT
Anterior column:
Classification ... deformity or neurologic ... Intact 2 Root ... #Spine #Classification ... #Orthopedics #diagnosis
Myotomes of the Spinal Cord
Each segmental nerve root innervates more than one muscle. For simplicity, certain
segmental nerve root ... nerve root. ... more resilient to injury ... Myotomes #SpinalCord #Diagnosis ... #Neurology #Localization
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Acute Spinal Cord ... Pathogenesis and clinical ... Syndrome -> Anterior spinal ... #Syndromes #diagnosis ... #orthopedics #neurology
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Spinal Cord Injury ... Spinal Root Sensory ... #SpinalCord #Injury ... #differential #diagnosis ... #Neurology #Spine
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
over dorsum of foot ... such as fibular fracture ... - Narrowing of spinal ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Classification ... causes: sepsis, meds ... #Classification ... #diagnosis #nephrology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... cord injury. ... Vertebral burst fracture ... #differential #diagnosis ... #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness • Spinal ... Phrenic nerve injury ... heavy metals), Critical ... #differential #diagnosis ... #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential Diagnosis ... neurological lesion: Clinical ... below the site of injury ... compression by fractured ... #neurology #differential
Urine Color - Differential Diagnosis
Red Urine:
 • Medical conditions: bleeding, porphyria, factitious disorder
 • Meds: rifampin,
- Differential Diagnosis ... with rhubarb and spinach ... asparagus, (blue food ... #Differential #Diagnosis ... discoloration #nephrology