Schulman H, Farmakides G
J Reprod Med. 1985 Aug;30(8):626-8.
Failed cervical cerclage, which requires removal of the suture for hemorrhage, infection or cervical dilation, may offer an opportunity for another cerclage during the same pregnancy. In three cases a variant of the McDonald technique was used to successfully complete pregnancy.
宫颈环扎失败，因出血、感染或宫颈扩张而需要拆除缝线，这可能为同一孕期再次进行环扎提供机会。有3例采用改良的麦克唐纳技术成功完成妊娠。
