The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Avulsion or shearing injury ... Signs/Symptoms/Complications ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology ... signs #symptoms #orthopedics
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
- Type 1 or 2 injury ... Grades #Grading #Orthopedics ... #MSK #diagnosis ... #complications ... #pathophysiology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
spinal artery injury ... function below injury ... Syndromes #diagnosis #pathophysiology ... signs #symptoms #msk ... #orthopedics #neurology
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Clinical Features and Complications ... Typically "inside out" injury ... Fractures #Diagnosis #Complications ... #MSK #Orthopedics
Spondylosis - Pathogenesis and Complications

Vertebral disease that may compress the vertebral canal from all sides
Note: Do
Pathogenesis and Complications ... #Spondylosis #pathophysiology ... #msk #complications
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
StressFractures #msk ... #orthopedics #pathophysiology
Low Ankle Sprain: Pathomechanics and Clinical Findings

Grading Ligament Sprains
l: Minimal ligament disruption, mild swelling & tenderness,
most commonly injured ... (uncommonly injured ... LowAnkleSprain #Sports #MSK ... #orthopedics #Grading ... Grades #Diagnosis #pathophysiology
Achilles Tendon Rupture - Pathogenesis and clinical findings
 • The Achilles tendon is 15cm long in
Signs/Symptoms/Complications ... signs #symptoms #pathophysiology ... #msk #orthopedics
Disc Herniations - Pathogenesis and Complications
• 90% of Lumbar disc herniations happen at L4/5 and L5/S1
•
Pathogenesis and Complications ... DiscHerniations #complications ... #msk #pathophysiology
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
cells -> Tissue injury ... Pancarditis and valvular injury ... RheumaticFever #pathophysiology ... signs #symptoms #complications