A textbook of obstetrics . e. A column of water is injectedinto the cranial cavity, to wash out the remaining brain-substance. Next, if it is necessary, the size of the emptied head may bereduced with a cephalotiibe. This is only called for in case of EMBRYOTOMY. 713 extreme pelvic contraction, or in the presence of some pelvictumor seriously diminishing the capacity of the pelvic canal. Inthe vast majority of cases a cranioclast should be used insteadof the cephalotribe. The internal branch of this instrument isinserted within the skull. The outer branch is next introduced inthe same manner t
A textbook of obstetrics . e. A column of water is injectedinto the cranial cavity, to wash out the remaining brain-substance. Next, if it is necessary, the size of the emptied head may bereduced with a cephalotiibe. This is only called for in case of EMBRYOTOMY. 713 extreme pelvic contraction, or in the presence of some pelvictumor seriously diminishing the capacity of the pelvic canal. Inthe vast majority of cases a cranioclast should be used insteadof the cephalotribe. The internal branch of this instrument isinserted within the skull. The outer branch is next introduced inthe same manner that one would insert a blade of the two branches are then locked, and the handles are screwedfirmly together, care bein^ taken that the internal branch is inserteddeeply within the cranial cavity, so that it shall get a firm graspupon the skull. The child is now extracted in the same mannerthat one would extract the head with the forceps, except thatthe tractive efforts are made uninterruptedly and with greater. Fig. 586.—Craniotomy on the after-coming head (Dickinson). one method of perforating force. In certain cases it is sufficient simply to perforate theskull. This applies particularly to cases of hydrocephalus. Thehead being evacuated, the forces of nature are sufficient to in-sure the childs delivery. If it is necessary to perforate the after-coming head, the perforator may be inserted behind the ear, inthe lambdoid suture, under the chin, through the roof of themouth, or, possibly, through the foramen magnum. In a caseof hydrocephalus with breech presentation, should there be greatdifficult}- in reaching the after-coming head, it is possible toevacuate the fluid by perforating the spinal column and passinga catheter through the spinal canal into the cranium. Decapitation.—The chief indication for decapitation is animpacted shoulder presentation, in which it is impossible to do 74 OBSTETRIC OPERA TIONS. version, cither on account of the inability to move
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
