Diseases & Conditions
Slipped Capital Femoral Epiphysis (SCFE)
Slipped capital femoral epiphysis is a separation within the thighbone (femur) at its growth plate in the hip joint.
Slipped capital femoral epiphysis usually develops in overweight adolescents, most commonly boys. The cause is not known. However, the disorder may result from a weakening in the growth plate, which can occur from trauma or inflammation, or from changes in levels of hormones in the blood, which normally occur around puberty. The separation causes the top part of the thighbone to eventually lose its blood supply, decay, and collapse.
The first symptom may be stiffness or mild pain in the hip. However, the pain may seem to come from the knee. The pain lessens with rest and worsens with walking or moving the hip. Later, a limp develops, followed by hip pain that extends down the inner thigh to the knee. The affected leg is usually twisted outward.
X-ray studies of the affected hip show a slippage or separation of the head of the thighbone from the rest of the bone. Ultrasonography and magnetic resonance imaging (MRI) are also useful, especially if x-ray studies are normal. Early diagnosis is important because treatment becomes more difficult and gives less satisfactory results later.
Slipped Capital Femoral Epiphysis
Surgery is usually needed to align the separated ends of the thighbone and to fasten them together with metal pins. The hip is immobilized in a cast for several weeks to 2 months.
Last full review/revision February 2008 by Frank Pessler, MD, PhD; David D. Sherry, MD
Source: The Merck Manual Home Edition