. An American text-book of obstetrics. For practitioners and students. osities are pulled outward,upward, and backward, so that the pelvic canal is made shallow and its outletvery wide. The heads of the femora move up and down on the ilia when the 542 AMERICAN TEXT-BOOK OF OBSTETRICS. patient walks, and the distance between the lower edge of the symphysisand the inner condyles of the femora is shortened (Figs. 335-337 ; PI 35Figs. 2-4, 7). In the absence of one lower extremity the pelvis may be contractedobliquely to a serious degree, as in La Chapelles case,* by the pressure onone side of the
. An American text-book of obstetrics. For practitioners and students. osities are pulled outward,upward, and backward, so that the pelvic canal is made shallow and its outletvery wide. The heads of the femora move up and down on the ilia when the 542 AMERICAN TEXT-BOOK OF OBSTETRICS. patient walks, and the distance between the lower edge of the symphysisand the inner condyles of the femora is shortened (Figs. 335-337 ; PI 35Figs. 2-4, 7). In the absence of one lower extremity the pelvis may be contractedobliquely to a serious degree, as in La Chapelles case,* by the pressure onone side of the remaining leg. Any condition which throws the weight of thebody mainly on one leg may produce the same effect, as is shown in a case ofthe writers (PI. 36, Figs. 4, 5), in which there was tuberculous disease of aknee-joint early in infancy, followedby marked shortening and atrophy ofthe leg. The weight of the body fall-ing mainly on the sound leg, the cor-responding innominate bone is pushedupward, backward, and inward, dimin-ishing the area of intrapelvic space on.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
