97 results
Ossification of Carpal Bones

It’s always tricky to remember the age of ossification of the carpal bones
Ossification of ... remember the age of ossification ... and sequence of ossification ... and finally the Pisiform ... drdevradiology #Ossification
Age of Ossification of Carpal Bones
Capitate - 1 Month
Hamate - 2 Months
Triquetral - 3 Years
Lunate -
Age of Ossification ... of Carpal Bones ... Trapezium - 6 Years Pisiform ... of the carpal bones ... #Age #Carpal #Bones
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Incr IGF1 • Bone ... chondrocytes -> Incr ossification ... activates lipolysis Signs
Basilar Skull Fracture
Fracture through petrous portion of temporal bone 
 - Periorbital ecchymosis 
 - Hemotympanum
portion of temporal bone ... ecchymosis (Battle's sign ... Fracture #Battles #Signs
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Common Carpal Bone ... Hamate - 1-2% • Pisiform ... drdevrad #Carpal #Bone
Symptoms of Hypophosphatemia
 • CNS: Seizures, Delirium, Paresthesias, Central & extrapontine myelinolysis, Hallucinations, Fatigue
 • Hematologic:
Heart failure • Bones ... Growth retardation, Bone ... Phosphate #Symptoms #Signs
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Symptoms: Commonly no signs ... , Fragile bones/ ... easily/weakness, Bone
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
posterior) and bone ... anterior sail sign ... fracture' • Ossification ... can't make A-OK sign
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
mechanical loading => Bone ... strain => Bone ... pathophysiology #symptoms #signs
Hypocalcemia is an electrolyte imbalance and is indicated by a low level of calcium in the
important for healthy bones ... overview #symptoms #signs