A textbook of obstetrics . Fig. 311.—Minor grade of osteomalacic Fig. 312.—Osteomalacia, showing asymmetrical contraction at outlet. thigh-bones the ischia and pubes are pushed inward and back-ward, making, by the former movement, a sharp, beak-like pro-jection of the pelvic inlet between the pubic rami, and by thelatter much diminishing the size of the pelvic canal ( Figs. 309,3 10, and 311). The sacrum is rotated on its transverse axis andis driven far down into the pelvic canal—an exaggeration of themovement seen in a rachitic pelvis. The lower portion of thesacrum and the coccyx a
A textbook of obstetrics . Fig. 311.—Minor grade of osteomalacic Fig. 312.—Osteomalacia, showing asymmetrical contraction at outlet. thigh-bones the ischia and pubes are pushed inward and back-ward, making, by the former movement, a sharp, beak-like pro-jection of the pelvic inlet between the pubic rami, and by thelatter much diminishing the size of the pelvic canal ( Figs. 309,3 10, and 311). The sacrum is rotated on its transverse axis andis driven far down into the pelvic canal—an exaggeration of themovement seen in a rachitic pelvis. The lower portion of thesacrum and the coccyx are pulled far forward by the mus- 45^ THE PATHOLOGY OF LABOR. cles attached to them, so that the sacrum is bent at a sharp anglein its lower third. The innominate bones are bent laterally at apoint slightly anterior to the sacro-iliac junction, and the iliacbones maybe folded upon themselves horizontally. The inclina-tion of the pelvis as a wholeis much increased. The diagnosis may bebased upon the followingsymptoms: The diseasebegins usually during preg-nancy or l
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
