Biancuzzo M
Birth. 1991 Mar;18(1):40-7. doi: 10.1111/j.1523-536x.1991.tb00053.x.
Retrospective chart review was conducted for four low-risk women with full-term, healthy fetuses in the occiput posterior position. The first woman pushed for over two hours and delivered a 6 lb, 8 3/4 oz baby by cesarean section. The second woman delivered a 5 lb, 2 3/4 oz baby posteriorly by vacuum extraction and had a third-degree laceration. The third and fourth women both assumed the hands-and-knees posture during labor; their infants weighted 7 lb, 7 3/4 oz and 7 lb, 11 3/4 oz, respectively. Both of these fetuses rotated to the anterior position and were born spontaneously without complications.
对四名低风险、足月、胎儿健康且处于枕后位的女性进行了回顾性病历审查。第一名女性用力超过两小时，最终通过剖宫产分娩出一个体重6磅8又3/4盎司的婴儿。第二名女性通过真空吸引器后位分娩出一个体重5磅2又3/4盎司的婴儿，并伴有三度撕裂伤。第三名和第四名女性在分娩过程中均采用了手膝位姿势；她们的婴儿体重分别为7磅7又3/4盎司和7磅11又3/4盎司。这两个胎儿均转为前位并自然分娩，无并发症。
