Dubois J, Lebreton P
J Gynecol Obstet Biol Reprod (Paris). 1976;5(7):941-56.
The occipito-posterior position has been thought to be a presentation leading to dystocia as a result of faulty positioning of the head. Closer observation of the facts lead one to think that this kind of position is really the result of better accommodation of the fetal head to the shapes of pelvis to which one has not become used but which are normal: this means those where the antero-posterior diameters are greater. By itself the occipito-posterior position cannot give rise to true complications. It only needs a particular mechanism. In deliveries in the occipito-posterior position progress and prognosis depend less on the presentation than on the conditions, especially the anatomical conditions, which have given rise to or made more likely the position and which go with it. It is therefore these conditions that have to be recognized each time and taken note of in order to carry out the best possible treatment.
枕后位一直被认为是由于头部位置不当导致难产的一种胎位。对事实的进一步观察使人认为，这种胎位实际上是胎儿头部更好地适应那些人们尚未习惯但却是正常的骨盆形状的结果：这里指的是前后径较大的骨盆。枕后位本身不会引发真正的并发症。它只需要一种特殊的机制。在枕后位分娩中，产程进展和预后与其说是取决于胎位，不如说是取决于导致或更易出现这种胎位并与之相关的条件，尤其是解剖学条件。因此，每次都必须识别并留意这些条件，以便实施尽可能最佳的治疗。
