The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Low Ankle Sprain: Pathomechanics and Clinical Findings

Grading Ligament Sprains
l: Minimal ligament disruption, mild swelling & tenderness,
Clinical Findings Grading ... sclerosis #LowAnkleSprain ... #Sports #MSK #orthopedics ... #Grading #Grades ... #Diagnosis #pathophysiology
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
and Complications ... - Type 1 or 2 injury ... Classification #Grades #Grading ... #Orthopedics #MSK ... #pathophysiology
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 ... StressFractures #msk ... #orthopedics #pathophysiology
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
and Complications ... Typically "inside out" injury ... Classification #Open #Fractures ... #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 ... #msk #diagnosis ... #pathophysiology
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 ... #Grading #Diagnosis ... #pathophysiology
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 ... FrozenShoulder #pathophysiology ... stages #staging #msk
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
Paget’s Disease: Complications ... bone formation MSK ... -> Pathologic fractures ... PagetsDisease #pathophysiology ... signs #symptoms #complications