A text-book of practical obstetrics, comprising pregnancy, labor, and the puerpal state, and obstetric surgery . t deplorable resultsin childbirth. The diagnosis of this form of pelvic deformity rests on thefact that there is narrowing in the external conjugate whilst, asa rule, the other diameters are normal. The transverse diam- OBSTETRIC DYSTOCIA AND ITS DETERMINATION. 21 eter may be increased ; there is no pelvic asymmetry. The trueconjugate measures, generally, about three inches. From a surgical stand-point, bearing these characteristics inmind, the recognition of this form of pelvic def
A text-book of practical obstetrics, comprising pregnancy, labor, and the puerpal state, and obstetric surgery . t deplorable resultsin childbirth. The diagnosis of this form of pelvic deformity rests on thefact that there is narrowing in the external conjugate whilst, asa rule, the other diameters are normal. The transverse diam- OBSTETRIC DYSTOCIA AND ITS DETERMINATION. 21 eter may be increased ; there is no pelvic asymmetry. The trueconjugate measures, generally, about three inches. From a surgical stand-point, bearing these characteristics inmind, the recognition of this form of pelvic deformity tells thephysician that his aim, in case of difficulty in extraction, shouldbe to guide the largest diameter of the fcetal presenting partinto the largest diameter of the pelvis. In other words, laborthrough this type of pelvis requires constant watchfulness onthe part of the accoucheur. It is only by not trusting to natureovermuch that deplorable results, chiefly from the fcetal side,may be avoided. Here, again, the question of the election ofversion or forceps will often be forced on the Fig. 9.—Flat Rachitic Pelvis (Mild Grade). IV. The Rachitic Pelvis.—In certain sections of Europethe rachitic type of pelvis is very commonly met with. In theUnited States, except among our foreign-born population, thispelvis is infrequent compared with the simple flat pelvis. Theexternal configuration of the woman may or may not suggestthe presence of rachitic deformity. Inquiry into the early historyof the patient will, however, generally give the requisite , in marked instances, the appearance of the patient ischaracteristic ; the size is dwarfed; the abdomen prominent;the gait clumsy; the sacrum is flattened externally in outline;a variable amount of spinal deviation may be present. External 22 OBSTETRIC SURGERY. pelvimetry will reveal, as a rule, diminution (slight in the minordegrees of deformity) in the measurements between the crestsand the spines. The
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Keywords: ., bookcentury1800, bookdecade1890, bookpubli, booksubjectobstetrics
