The American text-book of obstetrics for practitioners and students . ostures of the parturient on the birth-canal as a whole. 1. Posture will notably alter the shape of the pelvis in late pregnancy. •_. [ncrease of the available room in the entire pelvic cavity cannot bebrought about, since a posture which lengthens the conjugate of the inletshortens the conjugate of the outlet, and vice r<,-*<i. 3. To obtain the longest conjugate at the inlet the hanging dorsal postureis to be employed. The gain i- nearly 1 cm. (.1 of an inch . 4. To obtain the longest conjugate at the bony outlet the
The American text-book of obstetrics for practitioners and students . ostures of the parturient on the birth-canal as a whole. 1. Posture will notably alter the shape of the pelvis in late pregnancy. •_. [ncrease of the available room in the entire pelvic cavity cannot bebrought about, since a posture which lengthens the conjugate of the inletshortens the conjugate of the outlet, and vice r<,-*<i. 3. To obtain the longest conjugate at the inlet the hanging dorsal postureis to be employed. The gain i- nearly 1 cm. (.1 of an inch . 4. To obtain the longest conjugate at the bony outlet the full-flexeddorsal posture is necessary. The increase promises to be from to 2 cm.(| of an inch). 5. To obtain the straightest birth-canal, the arched dorsal and the full-flexed dorsal postures are desirable. 6. To give freest access to the interior of the fundus of the uterus, post-ures are desirable in this order—arched dorsal, lateral, full-flexed dorsal. The various postures are these : 1. Straight Dorsal Posture.—Full length on the back, with the legs. Pig. • — Straight dorsal posture. Note the lumbar arrhing. extended. Employed in abdominal palpation and external pelvimetry(Figs. 291 and 296). 2. Flexed Dorsal Posture.—On the back, the buttocks eitheral the edgeof the table or bed. or about 25 ••m. (10 inches) away, the feet on the in vagino-abdominal examination, internal pelvimetry, catheter-ization, the perineal stage of labor, to relax the pelvic floor in the perinealstage of forceps extraction ; in external version ; bipolar version : manualdilatation of the cervix (Figs. 292 and 297). * The full literature to date is given in the Amor. Jour. Obstetric*. Dec., 1898, and June,1899; articles by K. L. Dickinson. 496 AMERICAN TEXT-BOOK OF OBSTETRICS. 3. Full-flexed Dorsal Posture.—On the back, the hip-joints and knee-joints strongly flexed, the knees as near the shoulder as feasible. Employed
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectobstetrics, bookyear1
