Which pelvic shape is most conducive to vaginal labor and delivery?
a. Platypelloid
b. Anthropoid
c. Android
d. Gynecoid
D
The gynecoid pelvis is round and cylinder shaped, with a wide pubic arch. Prognosis for va-ginal birth is good.
The platypelloid pelvis is flat, wide, short, and oval and has a very poor prognosis for vaginal birth.
The anthropoid pelvis is a long, narrow oval with a narrow pubic arch. It is more favorable than the android or platypelloid pelvic shape.
Only 30% of women have an android-shaped pelvis, which has a poor prognosis for vaginal birth.
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