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) -
and Complications ... possible vascular injury ... - Type 1 or 2 injury ... Classification #Grades #Grading ... #Orthopedics #MSK
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
Stress Fracture: ... subthreshold mechanical loading ... from continued loading ... Stress Fracture ... StressFractures #msk
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Open Fractures: ... and Complications ... Typically "inside out" injury ... #Diagnosis #Complications ... #MSK #Orthopedics
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Femoral Head Fracture ... Avulsion or shearing injury ... Signs/Symptoms/Complications ... • Non-union of fracture ... #msk #diagnosis
Low Ankle Sprain: Pathomechanics and Clinical Findings

Grading Ligament Sprains
l: Minimal ligament disruption, mild swelling & tenderness,
Clinical Findings Grading ... most commonly injured ... (uncommonly injured ... LowAnkleSprain #Sports #MSK ... #orthopedics #Grading
Clavicular Fracture: Pathogenesis and clinical findings

Group I (69%) - Middle third (mid-shaft)
Group II (29%) - Distal
Clavicular Fracture ... the mechanism of injury ... and the site of fracture ... #Clavicular #Fracture ... #Grading #Diagnosis
Disc Herniations - Pathogenesis and Complications
• 90% of Lumbar disc herniations happen at L4/5 and L5/S1
•
Pathogenesis and Complications ... -> Mechanical loading ... DiscHerniations #complications ... #msk #pathophysiology
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
Prolonged shoulder injury ... , humeral head fracture ... side) Second Stage ... movement) Third Stage ... #staging #msk
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
Increased pressure gradient ... Signs / Symptoms / Complications ... scotomas of various shapes
Fracture Healing (and disruptors of this process)
Inflammatory Stage (0-7d)
 • Fracture disrupts local blood vessels ->
Inflammatory Stage ... site Soft Callus Stage ... stability Hard Callus Stage ... #Stages #Orthopedics ... #msk #Staging #