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February 24, 1945

THE INFLUENCE OF PLACENTAL SITE ON FETAL PRESENTATION

JAMA. 1945;127(8):442-445. doi:10.1001/jama.1945.02860080014004
Abstract

Occiput posterior presentation of the fetus since its designation and study as such by Baudelocque, Capuron and Naegele more than a century past has aroused increasing interest among obstetricians. Because of high incidence and poor management it probably has caused more obstetric disorder than any other single condition. Until the introduction of x-ray study of the size and shape of the pelvic cavity early in this century and of the study of the contour of the uterine cavity, only recently begun, all theories in regard to the etiology of occiput posterior presentation were speculation.

Occiput posterior presentation may be classified into three categories:

  1. Primary occiput posterior presentations occurring at the onset of labor which rotate in labor to occiput anterior presentations.

  2. Those which may rotate to cephalic transverse presentations and become stationary, so-called cephalic deep transverse arrests.

  3. Those that are delivered as occiput posterior. The etiology of

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