Open Reduction in Congenital Dislocation of the Hip.
—Putti and Zanoli1 discussed the technic for arthrotomy in reduction of congenita dislocation of the hip. The indications for, and results of, open reduc tion were not considered in this article. During the thirty years, 1899 1930, 2,994 patients with congenital dislocation of the hip had beer treated at the Rizzoli Institute, of which 94, or 3.1 per cent, required open or bloody reductions. Open reductions were done when bloodless reduction failed, or when dislocation recurred after changing. the firs cast, and in 15 patients of advanced age on whom closed reduction was not attempted. The general principle followed in operating was a gentle reposition or recomposition of the joint. All bone spicules and abnormal chondral formations in the acetabulum were carefully removed, the integrity of component parts of the skeleton being rigorously respected. Finally, the femoral head was