. The science and art of midwifery. multiple exostoses of theentire osseous framework.* The pel-ves in which they are found are, as arule, either of the oblique-ovate or ofthe rachitic variety, and the combi-nation of these deformities is natural-ly a serious one, since the maternalsoft parts are liable to contusion andperforation at many points during par-turition. The ilio-pectineal eminenceis sometimes so unusually prominentand sharp as to offer an obstacle toparturition. The same is true of thepubic crest and spine. Osteo-fibroma-ta, sarcomata, enchondromata, andcarcinomata connected with
. The science and art of midwifery. multiple exostoses of theentire osseous framework.* The pel-ves in which they are found are, as arule, either of the oblique-ovate or ofthe rachitic variety, and the combi-nation of these deformities is natural-ly a serious one, since the maternalsoft parts are liable to contusion andperforation at many points during par-turition. The ilio-pectineal eminenceis sometimes so unusually prominentand sharp as to offer an obstacle toparturition. The same is true of thepubic crest and spine. Osteo-fibroma-ta, sarcomata, enchondromata, andcarcinomata connected with the pelvicbones constitute tumors of rare oc-currence. They usually spring from the sacrum or from the symphy-sis,! and are of various dimensions. Some of them almost complete-ly occlude the parturient canal, and may constitute formidable ob-structions to delivery. In this connection may be mentioned, as of rare occurrence, anchy-losis of the coccyx, a condition which materially shortens the antero-posterior diameter of the Fig. 232.—Osseous tumors filling pelviccavity. (Naegele.) IX. Absence of the Symphysis. In this variety of deformed pelvis the symphysis is congenitallyabsent, and is replaced either by strong fibrous bands extending be-tween the opposing surfaces of the pubic bones, or by the muscles and * Leopold, Arch. f. Gynaek., Bd. iv, 18*72, p. 336; Kormann, Ibid., Bd. vi, 1874, f Harris, Am. Jour, of Obstet., vol. iv, 1872, pp. 633, 645; Braun, Monatssehrf. Geburtsk., Bd. xxi, 1863, p. 530 THE PATHOLOGY OF LABOR. connective tissue of the perinaeum. It is, accordingly, designated byLitzmann the split pelvis.* Morbid Anatomy.—It is usually attended by ectopia vesicae and byhiatus of the abdominal wall in the linea alba. In rare cases an ab-dominal hiatus exists without a corresponding opening in the the split be located immediately below the symphysis, the urethra isinvolved rather than the bladder, and is sometimes so defective th
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Keywords: ., bookcentury1800, bookdecade1890, bookidsci, booksubjectobstetrics
