. The science and art of midwifery . e sometimes found it convenient to lay it aside for a longer forcepswith a backward curve. A- the solidity of the shanks in axis-traction forceps prevents theblades from springing, the amount of pressure upon the head requisiteto keep the instrument from slipping has been found in practice not toprove an element of danger to the child. Forceps in Occipito-posterior Positions.—So long as the occiputlooks to the rear, it is the rule in midwifery practice to retrain fromthe use of foiveps, which, of necessity, prevents forward rotation fromtaking place. An exc
. The science and art of midwifery . e sometimes found it convenient to lay it aside for a longer forcepswith a backward curve. A- the solidity of the shanks in axis-traction forceps prevents theblades from springing, the amount of pressure upon the head requisiteto keep the instrument from slipping has been found in practice not toprove an element of danger to the child. Forceps in Occipito-posterior Positions.—So long as the occiputlooks to the rear, it is the rule in midwifery practice to retrain fromthe use of foiveps, which, of necessity, prevents forward rotation fromtaking place. An exception to this rule, however, arises in cases ofa near danger to either mother or child, demanding speedy delivery. As attempts to rotate the occiput around to the symphysis by instru-mental means are rarelv successful, il is advisable under such circum- 380 OBSTETRIC SURGERY stances to apply the forceps directly to the sides of the childs head,and to imitate during delivery the mechanism of Labor in occipito-pos-terior Fig. 157.—Occipito-posterior position. Traction in a downward direction to secure the descenlof the head beneath the pubic arch. (Faraboeuf and Varnier.) The rotation of the oeciput forward to the symphysis pubis by forceps seems, <i priori, a simple matter, and it would be if the vagina were a rigidcanal with fixed extremities. In reality it is an elastic tube, closely applied tothe childs head, and enjoys a great degree of mobility. When, therefore, thehead is turned a quarter-circle within the pelvis, the soft parts, a- a rule, areturned with it. When the force is removed, the vagina, owing to its resiliency,resumes its former position, and generally carries the head back to the originalpoint of departure.
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Keywords: ., bookcentury1800, bookdec, booksubjectobstetrics, booksubjectwomen
