Anyone?

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can you give us the previous and following sentences? Is this text the pathologic diagnosis or accompanying clinical info?

That's all there is... but here's another sentence that also uses the term.

Die Pfeilnaht des Kindes sehr steil im ersten Schrägen Durchmesser, kleine Fontanelle vorne, so dass die Indikation zur sekundären Sectio bei hohem Geradstand gestellt wird.

=...indicating the need for an emergency c-section 'with high stage longitudinal position'.

I'm really out to lunch here. The context is a surgical report about the operation of a c-section. Loaded with terms that not even HEXAL knows, like "Hervorlagern". As in "Die Plazenta folgt spontan und vollständig. Hervorlagern des Uterus auf den Bauch. Fassen der Uterotomieecken mit stumpfen Klemmern..." and "stumpfe Erweiterung des subkutanes Fettgewebes".

1. I misread -- it does say "surgical" report, not "pathological".
2. I can guess a few things
This site http://de.wikipedia.org/wiki/Hoher_Geradstand discusses the German terminology. My knowledge of obstetrics is too limited for me to help. It sounds like the Pfeilnaht means the anterior-posterior axis of the baby's head, which is longer than the transverse dimension. It sounds like the baby's head is down but maloriented relative to the axes of the mother's pelvis.
Hervorlangern sounds something like: The uterus was exteriorized: raised out of the incision, so that it rested on the abdomen (but not excised, presumably it was easier to suture closed), then it was returned to the inside of the mother's belly/pelvis.
Kleine Fontanelle is presumably the smaller posterior fontanelle (http://en.wikipedia.org/wiki/Fontanelle)
Die Plazenta folgt spontan und vollständig The placenta followed (i.e. came out of the uterus) spontaneously and completely
Fassen der Uterotomieecken mit stumpfen Klemmern...The corners (presumably meaning the two ends) of the incision into the uterus were gripped with blunt or smooth forceps of Klemmer type: http://www.spencer.it/eng/products/search.
stumpfe Erweiterung des subkutanes Fettgewebes The subcutaneous fat was blunt dissected (presumably referring to the initial incision, i.e. after cutting the skin, to get deeper iinto the abdominal wall).

Wow. Thank you very much!! That is a huge help and very enlightening.

Hoher Geradstand
We are talking about a "hoher Geradstand" when the Head of the fetus is not in the right position at the entrance to the pelvis. Normally the head is turned in a way so that the eyes of the baby look to the left or to the right side of the mother and the shape of the head fits perfectly to the shape of the mothers pelvis. Your baby obviously looked with its eyes to the belly (or the back) of the mother and this leads to a prolonged labour and often to a cecarean section.

Birth is being divided into the first stage, when the cervix is dilationg ( = Eröffnungsperiode) and the second stage of labour (Austreibungsperiode)
This means, that the cervic was being totally dilated when the diagnosis was made.