A textbook of obstetrics . ins cases and in one of the authors. If the occiput is 4;O THE PA 7//()LOGY OF LABOR. directed anteriorly, the transverse diameter of the head may becaught between the approximated spines or tuberosities of theischiatic bones, and labor be brought to an indefinite standstill( Figs. 355, ll^)- The head usually enters the pelvis obliquely ortransversely. Rotation only occurs as the head emerges from theoutlet. Face presentations occur in a large proportion of cases—four per cent, of the head presentations. Management of Labor in Kyphotic Pelves.—An exact meas-urement o
A textbook of obstetrics . ins cases and in one of the authors. If the occiput is 4;O THE PA 7//()LOGY OF LABOR. directed anteriorly, the transverse diameter of the head may becaught between the approximated spines or tuberosities of theischiatic bones, and labor be brought to an indefinite standstill( Figs. 355, ll^)- The head usually enters the pelvis obliquely ortransversely. Rotation only occurs as the head emerges from theoutlet. Face presentations occur in a large proportion of cases—four per cent, of the head presentations. Management of Labor in Kyphotic Pelves.—An exact meas-urement of the pelvis is essential to a determination of the propermeans of delivery. If the child is of normal size, pregnancymay be allowed to go to term in pelves measuring cm. andmore in the transverse diameter of the pelvic outlet. Anyasymmetry of the ischia will constitute a serious complication,necessitating operative interference that might be avoided in asymmetrical pelvis with smaller diameters. Below cm. down. Fig. 337- — Lumbosacral kyphosis (pelvis obtecta). to 6 cm. in the transverse measurement of the outlet, laborshould be induced at the thirty-sixth week. With a measure-ment less than 6 cm. Cesarean section is indicated the woman is first seen in labor at term, the head, if it ispresenting, should be allowed to descend to the pelvic floorand the woman should be encouraged to make vigorous ex-pulsive efforts. occiput shows a disposition to rotateposteriorly, the movement should not be interfered with, forthe greater bulk of the occipital region will find more room pos-terior to the tuberosities than it will anteriorly. Tin- author hasseen an oeeipito-anterior position of the vertex remain stationaryuntil the head rotated from an anterior to a posterior position,when the vertex was expelled without further difficulty. With a transverse diameter to can. spontaneous delivery may be ANOMALIES IN THE FORCES OF LABOR 47 possible, though i
Size: 1760px × 1420px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
