A textbook of obstetrics . Fig. 277.—Measuring the true conjugate, plus the thickness of the symphysis, with the authors Fig. 278.—Measuring the thickness of the symphysis, with the authors pelvimeter. externally ; the distance is read off from the indicator providedfor the purpose. It is not necessary to make an allowance forthe thickness of the tissues over the symphysis, for this isincluded in both measurements, and on subtracting one fromthe other the necessary correction is made. The tissues over 420 THE PATHOLOGY OF LABOR. the inner surface of the symphysis can usually be so
A textbook of obstetrics . Fig. 277.—Measuring the true conjugate, plus the thickness of the symphysis, with the authors Fig. 278.—Measuring the thickness of the symphysis, with the authors pelvimeter. externally ; the distance is read off from the indicator providedfor the purpose. It is not necessary to make an allowance forthe thickness of the tissues over the symphysis, for this isincluded in both measurements, and on subtracting one fromthe other the necessary correction is made. The tissues over 420 THE PATHOLOGY OF LABOR. the inner surface of the symphysis can usually be so com-pressed by the knob of the pelvimeter as to be practically elimi-nated. If this is impossible, as may happen in some primiparae, a small allowance may be made for these tissues—say, at themost, centimeter. In measuring a pelvis by this method itmay be necessary to anesthetize the patient ; and this is wellworth while if a decision between some of the more serious ob-stetrical operations is to be based, as it must be, upon an accur-ate estimation of the true Measurement of the Transverse Diameter of the
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
