A textbook of obstetrics . he sound leg, the corresponding innominate bone is pushedupward, backward, and inward, diminishing the area of in-trapelvic space on its own side. Torggler reports an inter-esting case of this kind in which the disability of one legwas due to In the absence of both lower ex-tremities there is the characteristic sitz-pelvis, in which theinnominate bones are usually rotated on an anteroposterior axis,so that the crests of the ilia are approximated and the tuberosi- 1 Pratique des Accouchements, iii, p. 413 ; according to Schauta, the onlycase on record. 2
A textbook of obstetrics . he sound leg, the corresponding innominate bone is pushedupward, backward, and inward, diminishing the area of in-trapelvic space on its own side. Torggler reports an inter-esting case of this kind in which the disability of one legwas due to In the absence of both lower ex-tremities there is the characteristic sitz-pelvis, in which theinnominate bones are usually rotated on an anteroposterior axis,so that the crests of the ilia are approximated and the tuberosi- 1 Pratique des Accouchements, iii, p. 413 ; according to Schauta, the onlycase on record. 2 Centralbl. f. Gyn., 1889, p. 612. 4So 7///•; pa rm)Logy of i abor. ties of the Ischia arc separated. Minor deformities of little prac-tical importance maybe the result of unilateral or bilateral club-foot or ot the bowing of one or both lower extremities. In theformer there is an increased inclination of the pelvis, and approxi-mation of the acetabula and of the ischiatic tuberosities, and anarrow pubic arch (Fig. 350).. Fig. 350.—Pelvic deformity, the result of double club-foot (Meyer). 6. The Management of Labor Obstructed by the Com=monest Forms of Contracted Pelvis: a Simple Flat, a RachiticFlat, and a Generally Contracted Pelvis.—There is nothing inmedicine requiring more experience and good judgment than themanagement of labor obstructed by a contracted pelvis. It isextremely difficult to formulate hard-and-fast rules for the guid-ance of the inexperienced when so many factors must be takeninto account. The rules given below govern the writers prac-tice in the average case, but due attention must be paid to thehistory of past labors, the size of the child, its development,and the compressibility of its head, the age ^\ the woman,the build of both parents, and the probable strength of the ex-pulsive forces, greatest in the primipara and less with successivelabors. If the diagnosis of a conjugate diameter of cm. or lessis made during pregnane)*, the physician mus
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
