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 ... StressFractures #msk ... #orthopedics #pathophysiology ... #symptoms #signs
Rheumatoid arthritis (RA): X-ray features
 • Soft tissue swelling (best seen by comparing left & right
Rheumatoid arthritis (RA ... ): X-ray features ... different planes) #RheumatoidArthritis ... #RA #HandXray # ... Radiology #Clinical #Pathophysiology
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Femoral Head Fracture ... onto lateral hip Signs ... #msk #diagnosis ... #pathophysiology ... #signs #symptoms
Subtrochanteric Femur Fracture: Pathogenesis and clinical findings
 • Subtrochanteric region spans 5 cm distally from the
Subtrochanteric Femur Fracture ... in elderly Causes ... #msk #orthopedics ... #differential #causes ... #pathophysiology
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Rheumatoid arthritis (RA ... inflammation tends to cause ... auscultation #RheumatoidArthritis ... #RA #pathophysiology ... #signs #symptoms
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Joint diseases features ... Extra-articular signs ... #RheumatoidArthritis ... #RA #pathophysiology ... #signs #symptoms
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
interarticularis stress fracture ... XR — scotty dog sign ... Spondylolisthesis #MSK ... #diagnosis #pathophysiology ... #signs #symptoms
Chronic Exertional Compartment Syndrome (CECS)
 • Diagnosis Of CECS requires patient to undergo the same exertional
activity that causes ... ChronicExertional #CompartmentSyndrome ... #CECS #pathophysiology ... #diagnosis #signs ... #symptoms #msk
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Myopathy (Also caused ... Erythematosus #SLE #MSK ... Complications #pathophysiology ... #signs #symptoms
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Greater Trochanter Fracture ... Trendelenburg #Gait #pathophysiology ... #causes #symptoms ... #signs #diagnosis ... #msk