An American text-book of the diseases of childrenIncluding special chapters on essential surgical subjects; orthopaedics, diseases of the eye, ear, nose, and throat; diseases of the skin; and on the diet, hygiene, and general management of children . tenotomies and me-chanical supports some of these cases can be greatly benefited, although, as aclass, the outlook is discouraging. They also should have the benefit of skilledattention, for some of them can be straightened and taught to walk, notwith-standing the fact that they have gone several years past the age when chil-dren usually gain the


An American text-book of the diseases of childrenIncluding special chapters on essential surgical subjects; orthopaedics, diseases of the eye, ear, nose, and throat; diseases of the skin; and on the diet, hygiene, and general management of children . tenotomies and me-chanical supports some of these cases can be greatly benefited, although, as aclass, the outlook is discouraging. They also should have the benefit of skilledattention, for some of them can be straightened and taught to walk, notwith-standing the fact that they have gone several years past the age when chil-dren usually gain the power of locomotion. OB THOP^DICS. 1087 Rachitic Deformities. Every bone in the body may become deformed from rickets, but the spmeand the bones of the lower extremities are the only ones of interest from anorthopaedic standpoint. Rachitic curvatures of the spine are usually antero-posterior, and are to be diiferentiated from other curvatures by the fact thatwhen the child lies down all or a greater part of the deformity disappears, andby the presence of other characteristic symptoms of rickets. A rachitic curveof the spine is usually a long, even curve, offering quite a contrast to thesharp, angular curve of Potts disease (Fig. 24). Fig. Rachitic spine. The prognosis in these cases is usually good. The spine should bestraightened and held, until the bones have become hardened, by some ofthe appliances recommended for Potts disease. Bow-legs is one of the most common rachitic deformities (Fig. 25). Inchildren under four years of age the legs can be gradually straightened by braces(Fig. 27); after this age the bones are usually too hard to be so the deformity is very slight, interference is unnecessary, since the nat-ural tendency is to grow straighter; when well marked and the childs bonesare hardened, it is necessary to break the bones to straighten them. This canbe easily and safely done by means of an osteoclast. The limbs are then putup in plaster of Pa


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