Volume 1
An introduction to the practice of midwifery / [Thomas Denman].
- Thomas Denman
- Date:
- 1805
Licence: Public Domain Mark
Credit: An introduction to the practice of midwifery / [Thomas Denman]. Source: Wellcome Collection.
113/478 page 47
![The Ifchia may be diftortcd by the unnatural bent of the fpinous procefTes ; and the cfFcd; of their preffurc may be obferved for fome time after birth, on the temporal and parietal bones ■of the head of a child propelled between them with much difficulty. 1 he dimenfions of the inferior aperture alfo may be Icffiened by the tuberofities of the ifchta bending inwards or forwards, by which the arch of the pnhis will be ieffiened, and rendered unfit to allow ol the emergence of the head of the child under the fymphyjis of the oj]a piibis. When the flability of the bones of pelvis is impaired, it is not poffible to enumerate- every kind of diftortion which they may fuffer; but it is principally in the degree that we are to feek for thofe great, and foinetimes, though rarely, infurmountable difficulties which occur in the praeffice of midwifery, and prove dan- gerous to either, or both the parent and child. In fome cafes the diftortion of one part of the pelvis produces an enlargement of the rpft. Thus when the fuperior aperture is contraefted, the inferior may be expanded; and hence it is often cbferved in priK^lice, when the head of the child hath pafted tlie point of obftrudlion with the moft tedious difficulty, that a labour will be unexpedfedly and fpeedily completed. When women have the appearance of being much deformed, it is reafonable to think that the pelvis muft be affeded. But there have been many inftances of extreme diftortion of](https://iiif.wellcomecollection.org/image/b22039697_0001_0113.jp2/full/800%2C/0/default.jpg)
