The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
possible vascular injury ... - Type 1 or 2 injury ... Grades #Grading #Orthopedics ... #MSK #diagnosis ... complications #pathophysiology
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
femoral head onto anterior ... Avulsion or shearing injury ... #msk #diagnosis ... #pathophysiology ... signs #symptoms #orthopedics
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
Stress Fracture: ... => Microscopic fractures ... loading Stress Fracture ... StressFractures #msk ... #orthopedics #pathophysiology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
clinical findings • Anterior ... Cord Syndrome -> Anterior ... Syndromes #diagnosis #pathophysiology ... signs #symptoms #msk ... #orthopedics #neurology
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Open Fractures: ... Typically "inside out" injury ... Classification #Open #Fractures ... Complications #MSK ... #Orthopedics
Subtrochanteric Femur Fracture: Pathogenesis and clinical findings
 • Subtrochanteric region spans 5 cm distally from the
Subtrochanteric Femur Fracture ... low energy fall fractures ... Atypical femur fracture ... #msk #orthopedics ... differential #causes #pathophysiology
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder ... joint capsule => Anterior ... • Humeral head anterior ... signs #symptoms #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
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Findings Compression/injury ... ligament (near anterior ... MeralgiaParesthetica #MSK ... #pathophysiology
Isolated Anterior Cruciate Ligament (ACL) Injury: Pathogenesis and clinical findings
 • Feeling a "pop"
 • Acute
Isolated Anterior ... Ligament (ACL) Injury ... Shift test + Anterior ... AnteriorCruciateLigament #ACL #Injury ... #MSK #Sports #pathophysiology