The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Open Fractures: ... and Complications ... Classification #Open #Fractures ... #Diagnosis #Complications ... #MSK #Orthopedics
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
of Pelvic Ring Fractures ... and Complications ... bilateral rami fractures ... #Orthopedics #MSK ... #diagnosis #complications
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 #
Subtrochanteric Femur Fracture: Pathogenesis and clinical findings
 • Subtrochanteric region spans 5 cm distally from the
Subtrochanteric Femur Fracture ... low energy fall fractures ... in elderly Causes ... #msk #orthopedics ... #differential #causes
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Femoral Head Fracture ... Signs/Symptoms/Complications ... • Non-union of fracture ... #FemoralHead #Fractures ... #msk #diagnosis
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Rheumatoid arthritis (RA ... effusion on CXR • RA ... inflammation tends to cause ... auscultation #RheumatoidArthritis ... #RA #pathophysiology
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Rheumatoid arthritis (RA ... Joint diseases features ... • RA affects ... Extra-articular signs #RheumatoidArthritis ... #RA #pathophysiology
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Myopathy (Also caused ... Erythematosus #SLE #MSK ... Musculoskeletal #Complications
Boutonniere Deformity: Pathogenesis and Complications
 • Hyperextension of DIP
 • Flexion of PIP
=> Boutonniere Deformity =>
Pathogenesis and Complications ... pathophysiology #msk ... #rheumatoidarthritis
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Equina Syndrome Causes ... Signs / Symptoms / Complications ... CaudaEquina #Syndrome #MSK