Slipped capital femoral epiphysis (SCFE or skiffy, slipped upper femoral epiphysis, SUFE or souffy, coxa vara adolescentium) is a medical term referring to a fracture through the growth plate (physis), which results in slippage of the overlying end of the femur (metaphysis). Normally, the head of the femur, called the capital, should sit squarely on the femoral neck. Abnormal movement along the growth plate results in the slip. The term slipped capital femoral epiphysis is actually a misnomer, because the epiphysis (end part of a bone) remains in its normal anatomical position in the acetabulum (hip socket) due to the ligamentum teres femoris. It is actually the metaphysis (neck part of a bone) which slips in an anterior direction with external rotation. SCFE is the most common hip disorder in adolescence. SCFEs usually cause groin pain on the affected side, but sometimes cause knee or thigh pain. One in five cases involves both hips, resulting in pain on both sides of the body. SCFEs occurs slightly more commonly in adolescent males, especially young black males, although it also affects females. Whilst it can occur in any child, the major risk factor is childhood obesity. Symptoms include the gradual, progressive onset of thigh or knee pain with a painful limp. Hip motion will be limited, particularly internal rotation. Running, and other strenuous activity on legs, will also cause the hips to abnormally move due to the condition and can potentially worsen the pain. Stretching is very limited.
Treatment
The most common treatment in animals is weekly use of some form of topical pesticide appropriate for the affected animal, often an antiflea product. Fipronil works well, especially in cats. Cats can also be treated with a lime sulfur insecticide dip or a shampoo with non-pyrethrin insecticide for two weeks beyond the conclusion of symptoms.In unresponsive cases, ivermectin is used. Selamectin is also recommended for treatment. None of these products are approved for treatment of cheyletiellosis. Other pets in the same household should also be treated, and the house or kennel must be treated with an environmental flea spray. Species
Cheyletiella blakei Smiley, 1970 — infests cats (Felis catus), USA (Washington DC)
Cheyletiella parasitivorax  — infests rabbits (Oryctolagus cuniculus), France
Cheyletiella romerolagi (Fain, 1972) — infests Romerolagus diazi, USA (New York)
Cheyletiella strandtmanni  Smiley, 1970 — infests hares (Lepus spp. ), Taiwan
Cheyletiella yasguri Smiley, 1965 — infests dogsC. yasguri and C. blakei can transiently affect humans. See also
List of mites associated with cutaneous reactions
Mange


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