In these cases callus is speedily formed.In congenital dislocations,the bones below the seat of the injury are shorter than natural;in this case,the greatest shortening is in the nearest,namely,those of the fore-arm;second,those of the hand;third,those of the fingers.The arm and shoulders are stronger,owing to the nourishment which they receive,and the other arm,from the additional work it has to perform,is still more strong.The wasting of the flesh,if the dislocation was outward,is on the inside;or if otherwise,on the side opposite the dislocation.