The development of the upper end of the femur in multiple hereditary exostosis.

A roentgenographic study of 50 hips suggests that an increased anteversion-valgus configuration of the upper end of the femur is an intrinsic component and common in multiple hereditary exostosis. In one 8-year-old girl, the increased anteversion-valgus may have accelerated dislocation of a septic arthritic hip.