The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Account created for The Calgary Guide to Understanding Disease - Linking pathophysiology to clinical presentation - http://calgaryguide.ucalgary.ca/
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Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
Stress Fracture: ... => Microscopic fractures ... => Fracture propagation ... loading Stress Fracture ... #orthopedics #pathophysiology
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
of Pelvic Ring Fractures ... : Mechanisms, Clinical ... bilateral rami fractures ... Grades #Grading #Orthopedics ... #MSK #diagnosis
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 ... Subtrochanteric #Femur #Fractures ... #msk #orthopedics
Clavicular Fracture: Pathogenesis and clinical findings

Group I (69%) - Middle third (mid-shaft)
Group II (29%) - Distal
Clavicular Fracture ... correlation between the mechanism ... and the site of fracture ... with clavicle fractures ... #Clavicular #Fracture
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Femoral Head Fracture ... • Non-union of fracture ... #FemoralHead #Fractures ... #msk #diagnosis ... #pathophysiology
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Open Fractures: ... Mechanisms, Clinical ... Classification #Open #Fractures ... Complications #MSK ... #Orthopedics
Benzodiazepines: Mechanism of Action and Side Effects
 • Decr spinal cord activity -> Muscle relaxant
Benzodiazepines: ... Mechanism of Action ... Depression #Benzodiazepines ... #Psychiatry #Pharmacology ... #pathophysiology
Acute Compartment Syndrome
 • Crush injuries, burns, circumferential constriction to limbs (each containing facially divided muscle
local signalling mechanisms ... bleeding tendency/fracture ... CompartmentSyndrome #ACS #pathophysiology ... #orthopedics
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
interarticularis stress fracture ... Spondylolisthesis #MSK ... #diagnosis #pathophysiology
Fracture Healing (and disruptors of this process)
Inflammatory Stage (0-7d)
 • Fracture disrupts local blood vessels ->
Fracture Healing ... healing time, mechanisms ... #Stages #Orthopedics ... #msk #Staging # ... pathophysiology