The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Femoral Head Fracture ... weight-bear • Arthritic ... • 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
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
Cell (Temporal) Arteritis ... palpation - Vasculitic ... GiantCell #Temporal #Arteritis ... Pathophysiology #Diagnosis ... Signs #Symptoms #Vasculitis
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
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 ... #msk #orthopedics ... #diagnosis #differential
Giant Cell (Temporal) Arteritis: Clinical findings and Complications
Signs/Symptoms: 
 - Headache (usually constant, superimposed by waves
Cell (Temporal) Arteritis ... GiantCell #Temporal #Arteritis ... Signs #Symptoms #diagnosis ... #Vasculitis
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
IgA Vasculitis – ... Leukocytoclastic vasculitis ... Arthralgia's (common), arthritis ... #HSP #IgA #Vasculitis ... Pathophysiology #Diagnosis
Rheumatoid arthritis (RA): X-ray features
 • Soft tissue swelling (best seen by comparing left & right
Rheumatoid arthritis ... (RA): X-ray features ... #RA #HandXray #Diagnosis
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Rheumatoid arthritis ... blood vessels (vasculitis ... signs #symptoms #diagnosis
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
of the Hip • Arthritis ... Greater Trochanter Fracture ... symptoms #signs #diagnosis