A treatise on the science and practice of midwifery . r of reducing thebulk of the foetal skull. In this country it is practically unknown :and, although it must be admitted to be theoretically excellent, thecomplexity and cost of the apparatus have always stood in the wayof its being used. Dr. Barnes has suggested that the same results may be obtainedby dividing the head with a strong wire ecraseur. So far as I know,this suggestion has never yet been carried out in practice, not evenby himself, and, therefore, it is not possible to say much about it. Ishould imagine, however, that there would
A treatise on the science and practice of midwifery . r of reducing thebulk of the foetal skull. In this country it is practically unknown :and, although it must be admitted to be theoretically excellent, thecomplexity and cost of the apparatus have always stood in the wayof its being used. Dr. Barnes has suggested that the same results may be obtainedby dividing the head with a strong wire ecraseur. So far as I know,this suggestion has never yet been carried out in practice, not evenby himself, and, therefore, it is not possible to say much about it. Ishould imagine, however, that there would be considerable difficultyin satisfactorily passing the loop of wire over the skull, in a pelvisin which there is any well-marked Hickss Cephalotribe. 490 OBSTETRIC OPERATIONS. Cases requiring Craniotomy.—The most common cause for whichcraniotomy or cephalotripsy is performed, is a want of proper pro-portion between the head and the maternal passages. This mayarise from a variety of causes. The most important, and that mostoften necessitating the operation, is osseous deformity. This mayexist either in the brim, cavity, or outlet, and it is most often metwith in the antero-posterior diameter of the brim. Obstetric au-thorities differ considerably as to the precise amount of contractionwhich will prevent the passage of a living child at term. ThusClarke and Barns believe that a living child cannot pass through apelvis in which the antero-posterior diameter at the brim is less than3\ inches. Eamsbotham fixes the limit at 3 inches, and Osborne andHamilton at 2f inches. The latter is the extreme limit at which thebirth of a living child is possible; but there can be no doubt that,under favorable circumstances, it
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Keywords: ., bookcentury1800, bookdecade1870, bookidtre, booksubjectobstetrics
