12 results
Orthopedic Essentials - Spinal Trauma and Spine Classification 
DENIS THREE COLUMN CONCEPT
Anterior column:
Middle column: PLL ... Stable fractures ... : Don't cause spinal ... deficit, still able ... #Orthopedics #diagnosis
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
- Differential Diagnosis ... Infection: Epidural abscess ... #Differential #Diagnosis ... #causes #primarycare ... #table
Stridor - Differential Diagnosis Framework:
High-pitched, variable respiratory sound

ETIOLOGIES:
Infectious:
 • Retropharyngeal abscess
 • Acute epiglottitis
 • Peritonsillar
- Differential Diagnosis ... Mechanical: • Larynx fracture ... #differential #diagnosis ... #causes #pulmonary ... #airway #physicalexam
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... of PCN allergy ... shows a small, stable ... #differential #causes
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
Monteggia Fracture ... dislocation; remember, assess ... ligamentous injury (LCL ... • If stable ... Radiology #XRay #Diagnosis
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... Leg Pain: • Fracture ... : - Epidural abscess ... #differential #diagnosis ... extremity #msk #physicalexam
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential Diagnosis ... Intra-articulation fracture ... Knee #Effusions #causes ... #msk #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 ... Spinal infection/abscess ... #differential #diagnosis ... #causes #neurology
Pyogenic liver abscess in children
Common bacterial causes in children:
 • S.aureus
 • Strep spp
 • Enteric
Pyogenic liver abscess ... Common bacterial causes ... #pediatrics #children ... #differential #diagnosis ... #hepatology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... Antibiotics (Bactrim, PCN ... only if no clear cause ... Elimination (see Table ... #Hyperkalemia #Diagnosis