. The science and art of midwifery. re a tolerably distinctidea of the relative thickness of the bones, the inclination of the iliato the horizon, the height of and the angle formed by the symphysispubis, the size and character of the pubic arch, the length, breadth,and curvature of the sacrum, the position of the promontory, and thedistance between the ischia. More exact information is derivable from direct measurements be-tween different prominent points in the pelvis. Various pelvimetershave been devised to facilitate the required measurements. Those fordetermining the distance between cert


. The science and art of midwifery. re a tolerably distinctidea of the relative thickness of the bones, the inclination of the iliato the horizon, the height of and the angle formed by the symphysispubis, the size and character of the pubic arch, the length, breadth,and curvature of the sacrum, the position of the promontory, and thedistance between the ischia. More exact information is derivable from direct measurements be-tween different prominent points in the pelvis. Various pelvimetershave been devised to facilitate the required measurements. Those fordetermining the distance between certain external points are alone ofpractical value. For this purpose the circle of Baudelocque is the oneI have most constantly employed. It requires to be used with cautionon account of the spring of the metallic arms. Schultzes instrumentpossesses the advantages of greater firmness and portability. Thepoints selected for measurement should be bony prominences, easy ofrecognition, and not covered by soft parts. They should be such as. Fig. 213.—Baudelocques pelvimeter. 404 THE PATHOLOGY OF LABOR. to allow us to form at least approximative conclusions relative to thediameters of the small pelvis. Experience shows us that, judged bythese rules, three measurements only are possessed of real importance,


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Keywords: ., bookcentury1800, bookdecade1890, bookidsci, booksubjectobstetrics