A textbook of obstetrics . Fig. 326. — Spondylolisthesis,beginning (Schauta).. Fig. 327. — Last lumbarvertebra of spondylolisthesis (a),contrasted with a normal fifthlumbar vertebra (Neugebauer). and downward, and with it depresses the posterior portion of thepelvic brim. To compensate for this movement the anteriorhalf of the pelvic brim rises and the height of the symphysisis increased. This movement of the pelvis diminishes verymarkedly its inclination, and disturbs the normal relationshipbetween the bones and the soft structures that overlie base of the triangle formed by the pubi
A textbook of obstetrics . Fig. 326. — Spondylolisthesis,beginning (Schauta).. Fig. 327. — Last lumbarvertebra of spondylolisthesis (a),contrasted with a normal fifthlumbar vertebra (Neugebauer). and downward, and with it depresses the posterior portion of thepelvic brim. To compensate for this movement the anteriorhalf of the pelvic brim rises and the height of the symphysisis increased. This movement of the pelvis diminishes verymarkedly its inclination, and disturbs the normal relationshipbetween the bones and the soft structures that overlie base of the triangle formed by the pubic hair in women iswell below the upper edge of the symphysis, and the externalgenitalia are pulled so far forward that the vulvar orifice is 462 THE PATHOLOGY OF LABOR. directed anteriorly as the patient sits or stands. There are, more-over, the same displacements o( the pelvic bones that are seen inkyphosis—a rotation backward of the sacrum on its transverseaxis ; a rotation outward of the upper portions, and inwardof the lower portions, of the innominate bones on thei
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
