48 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
commonly fractured carpal ... bone. ... Second most common carpal ... bone fracture ... #Wrist #Carpal
Ossification of Carpal Bones

It’s always tricky to remember the age of ossification of the carpal bones
Ossification of Carpal ... ossification of the carpal ... interpreting a Pediatric ... -6-7 years for Triquetral ... Diagnosis #Peds #Pediatrics
Age of Ossification of Carpal Bones
Capitate - 1 Month
Hamate - 2 Months
Triquetral - 3 Years
Lunate -
Ossification of Carpal ... Bones Capitate ... Hamate - 2 Months Triquetral ... bones! ... diagnosis #msk #pediatrics
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Most Common Carpal ... Bone Fractures ... Scaphoid - 50-80% • Triquetral ... Pal @drdevrad #Carpal ... #Bone #Fractures
Atrioventricular Septal Defect
aka AV canal defect aka endocardial cushion defect
 • Epidemiology and Associations
 • Embryology
Defect aka AV canal ... Physical Exam • Pathophysiology ... Outcomes by Cara ... management #peds #pediatrics
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Phosphate Physical Symptoms ... signs, Fragile bones ... easily/weakness, Bone ... pain Psychiatric Symptoms ... Secondary #Tertiary #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Incr IGF1 • Bone ... lipolysis Signs/Symptoms ... expansion (e.g. carpal ... endocrinology #pathophysiology
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
mechanical loading => Bone ... strain => Bone ... #orthopedics #pathophysiology ... #symptoms #signs
Prader-Willi Syndrome: Pathogenesis and clinical findings
 • Maternal uniparental disomy: inheriting 2 copies of maternal chromosome
Syndrome Signs/Symptoms ... Infertility • Decr Bone ... Syndrome #genetics #pathophysiology ... #peds #pediatrics
Osteoporosis: Pathogenesis and risk factors

 • Age > 30 (post-peak bone mass)
 • Post-menopausal women ->
30 (post-peak bone ... Decr estrogen • Bone ... #Osteoporosis #pathophysiology ... #signs #symptoms