Moolgaoker A S, Ahamed S O, Payne P R
Obstet Gynecol. 1979 Sep;54(3):299-309.
Electronic measurements of compression, using a hydrostatic technique, were made during 44 normal deliveries and compared with the values obtained during 32 deliveries using Kielland's forceps, 21 using Neville Barnes' forceps, 48 using Moolgaoker's adjustable forceps, and 26 using Malmstrom's vacuum extractor. Electronic recordings of traction, using strain gauges, were made simultaneously during all the instrumental deliveries except those with Kielland's forceps. By exercising suitable controls over most of the multiple factors operating at the time of any delivery the authors were able to compare objectively the efficiency of the different methods of instrumental delivery. Smaller forces of compression and traction were exerted and better Apgar scores were recorded in infants delivered with the adjustable forceps than in infants delivered with the other instruments. The superiority of the adjustable forceps was most noticeable during midcavity deliveries of the malrotated head.
采用流体静力技术对44例正常分娩过程进行了电子压力测量，并与32例使用基兰德产钳、21例使用内维尔·巴恩斯产钳、48例使用穆尔高克可调产钳以及26例使用马尔姆斯特伦真空吸引器的分娩过程中获得的值进行了比较。除了使用基兰德产钳的分娩过程外，在所有器械助产分娩过程中均同时使用应变仪进行了电子牵引力记录。通过对分娩时起作用的大多数多因素进行适当控制，作者能够客观地比较不同器械助产方法的效率。与使用其他器械分娩的婴儿相比，使用可调产钳分娩的婴儿施加的压力和牵引力较小，且阿氏评分更高。可调产钳的优势在胎位异常的中骨盆分娩过程中最为明显。
