The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
Stress Fracture: ... Pathogenesis and clinical findings ... => Microscopic fractures ... loading Stress Fracture ... StressFractures #msk #orthopedics
Subtrochanteric Femur Fracture: Pathogenesis and clinical findings
 • Subtrochanteric region spans 5 cm distally from the
Subtrochanteric Femur Fracture ... Pathogenesis and clinical findings ... low energy fall fractures ... #msk #orthopedics ... #diagnosis #differential
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Femoral Head Fracture ... Pathogenesis and clinical findings ... • Non-union of fracture ... #msk #diagnosis ... signs #symptoms #orthopedics
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
of Pelvic Ring Fractures ... Sacral compression fracture ... #PelvicRing #Fractures ... Grades #Grading #Orthopedics ... #MSK #diagnosis
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Open Fractures: ... Mechanisms, Clinical Features ... Classification #Open #Fractures ... #Diagnosis #Complications ... #MSK #Orthopedics
Clavicular Fracture: Pathogenesis and clinical findings

Group I (69%) - Middle third (mid-shaft)
Group II (29%) - Distal
Clavicular Fracture ... Pathogenesis and clinical findings ... and the site of fracture ... #Clavicular #Fracture ... #Grading #Diagnosis
Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
Osteoarthritis (OA): X-ray features ... Osteoarthritis #OA #Xray #radiology ... #diagnosis #findings
Obsessive-Compulsive Disorder (OCD): Pathogenesis and clinical findings

Psychological Hypothesis
 • Cognitive behavioral model: Emotional disturbance arising from
Pathogenesis and clinical findings ... ObsessiveCompulsive #PersonalityDisorder ... #Diagnosis #Psychiatry
Rheumatoid arthritis (RA): X-ray features
 • Soft tissue swelling (best seen by comparing left & right
arthritis (RA): X-ray features ... #RA #HandXray #Diagnosis ... #Radiology #Clinical ... Pathophysiology #Findings
Lewy Body Dementia: Pathogenesis and Clinical Findings
Lewy Body Dementia is a sub-category of major or mild
Pathogenesis and Clinical Findings ... a hierarchy of diagnostic ... (required for diagnosis ... function Core features ... pathophysiology #geriatrics #diagnosis