1. Frostbite in a child may be severe enough to destroy the cartilage cells of the epiphysial plate of a digit, and produce clinical deformity.

2. Both the direct effect of the freezing itself and the vascular changes secondary to such frostbite appear to cause necrosis of the growing epiphysis with destruction of the epiphysis and disappearance of the epiphysial line or plate. The disappearance of the epiphysial plate is obvious, but whether the epiphysis itself is actually destroyed and disappears or simply fuses with the metaphysis is a question now being studied.

3. It is suggested that the deformities may be helped by interphalangeal fusion of severely involved joints in the position of function, and phalanges that become angled into varus or valgus may be improved by open wedge osteotomy or epiphysiodesis of the side of the epiphysis still functioning.