A textbook of obstetrics . normally long conjugate diameter of the inlet, a diminisheddistance between the posterior superior spines, an approximationof the tuberosities of the ischiatic bones, and some diminution inthe anteroposterior diameter of the pelvic outlet. The buttocksare flat and pointed below, the external genitalia are displacedforward and upward, and the upper edge of the symphysis isabove the upper edge of the pubic hair. Care should always beexercised to detect asymmetry in these pelves, to discover an 47 ^ THE PATHOLOGY OF LABOR. arrested development with general contraction w
A textbook of obstetrics . normally long conjugate diameter of the inlet, a diminisheddistance between the posterior superior spines, an approximationof the tuberosities of the ischiatic bones, and some diminution inthe anteroposterior diameter of the pelvic outlet. The buttocksare flat and pointed below, the external genitalia are displacedforward and upward, and the upper edge of the symphysis isabove the upper edge of the pubic hair. Care should always beexercised to detect asymmetry in these pelves, to discover an 47 ^ THE PATHOLOGY OF LABOR. arrested development with general contraction which is common,and to diagnosticate lateral contraction at the pelvic inlet. These complicating deformities constitute often insuperable obstacles inlabor, even though the transverse diameter of the outlet is notexcessively c< mtracted. Klein gives the following table, showing the contrast betweenkyphotic, normal, and rachitic pelves, taking a typical exampleof each, the measurements being made upon the dried specimen :. Sp. il. ant. sup., Cr. il., Conj. extern., Spin. il. post, sup., Height of anterior surface of sacrum, . .Height of posterior surface of sacrum, . Diagonal conjugate, True conjugate, Transverse diameter of pelvic inlet, . . Spines of the ischia, io Tuberosities of the ischia, Prognosis.—The outlook for the mother and child dependsupon the degree of the deformity and upon the management ofthe labor. In the minor grades of contraction in the casescollected by Klein, the maternal mortality was per cent. Inthe graver cases it was 16 per cent. Neugebauer puts thematernal mortality at per cent. The mortality of the in-fants has varied in the different statistical tables from 36 to 49per cent. Frequency.—The kyphotic pelvis is said to be somewhatinfrequent, but the practitioner in active practice will surelyencounter several examples in the course of his career. Thewriter has had under his care six well-marked cases of kyphoticpelvis, in two of which C
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
