23 results
Orthopedic Essentials - Spinal Trauma and Spine Classification 
DENIS THREE COLUMN CONCEPT
Anterior column:
Classification ... : Don't cause spinal ... deformity or neurologic ... #Spine #Classification ... #Orthopedics #diagnosis
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Commonly caused ... such as fibular fracture ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #leg #physicalexam
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential Diagnosis ... below the site of injury ... compression by fractured ... Cord Causes: 1 ... #neurology #differential
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... Causes of spinal ... Vertebral burst fracture ... #differential #diagnosis ... #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... spared in this injury ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
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 ... Differential Diagnosis ... AVM • Multilevel ... #differential #diagnosis ... #causes #neurology
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Classification ... tubular necrosis (causes ... : sepsis, meds, ... #diagnosis #nephrology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... Leg Pain: • Fracture ... deficiency etc) • Spinal ... #lower #extremity ... #msk #physicalexam
Webber Ankle Injury Classification

A: In a Supination-Adduction injury the fibula breaks first, with a fracture below
Classification ... In more severe cases ... caused by pronation ... #Diagnosis #Orthopedics ... #Fracture #Classification
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Weakness • Spinal ... Phrenic nerve injury ... #differential #diagnosis ... #neurology