September 7, 2020

Definition: Medial or posterior slippage of the femoral capital epiphysis relative to the metaphysis

Epidemiology:

  • Classic patient group: overweight adolescent boys
    • Over 80% of SCFE involves children with a BMI > 95th percentile (Manoff 2005).
    • Average age of onset: 12 years old
  • Bilateral SCFE is fairly common
    • 23% will have contralateral disease at the time of initial presentation, despite only complaining of unilateral pain (Hagglund 1988, Loder 1993).
    • Up to 60% of patients will go on to develop bilateral SCFE in their lifetime
    • 88% of subsequent slips occur within 18 months of diagnosing the first slip
  • Influenced by bone maturation, strength, and weight mismatch.
  • SCFE has also been associated with endocrine disorders such as hypothyroidism, hypogonadism, pan-hypopituitarism, but this is not as common.
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