Valgus slip of the capital femoral epiphysis.

Valgus slip of the capital femoral epiphysis, a rare entity which may be acute or chronic, occurred in a 12-year-old boy. The displacement may be associated with a pre-existing coxa valga. The patient also had a varus slip of the capital femoral epiphysis on the contralateral side. Both hips were successful treated by in situ pinning. A review of the English literature reveals only 8 previously reported cases of valgus slipping of the capital femoral epiphysis. Either valgus or lateral slips are unusual.