Related Experiment Video
Updated: Aug 10, 2026

State of the Art Cranial Ultrasound Imaging in Neonates
Published on: February 2, 2015
Persistent occiput posterior presentation--a clinical problem
1Department of Obstetrics and Gynecology, Vaasa Central Hospital, Finland.
In order to find out how often labor is complicated by persistent occiput posterior position, (OPP), and how it affects the course and outcome of labor, the records of 3648 deliveries were reviewed, a frequency of 4.7% was found. Also, the amount of operative deliveries was surprisingly high, less than half of these cases were delivered without operative intervention. Total duration of labor, stage II of labor were both significantly longer in the OPP group. The children in the OPP group also were significantly heavier (79 g) than the average birthweight in the whole material.
In order to find out how often labor is complicated by persistent occiput posterior position, (OPP), and how it affects the course and outcome of labor, the records of 3648 deliveries were reviewed, a frequency of 4.7% was found. Also, the amount of operative deliveries was surprisingly high, less than half of these cases were delivered without operative intervention. Total duration of labor, stage II of labor were both significantly longer in the OPP group. The children in the OPP group also were significantly heavier (79 g) than the average birthweight in the whole material.
Related Concept Videos
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Cranial Bones: Superior and Posterior View
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Methods of Documentation II: POMR

