[The prognostic importance of ultrasonic pelvimetry in anatomically contracted pelvis]. / Prognosticheskoe znachenie ul'trazvukovoi pel'viometrii pri anatomicheski uzkikh tazakh.

The lesser pelvis parameters measured by ultrasonic pelvimetry are characterized by different prognostic value for the functional assessment of various anatomic forms of contracted pelvis. Direct dimensions of the lesser pelvis, a difference of direct size of the orifice and fetal head biparietal size, and the pelviocranial index are prognostically the most valuable for patients with generally contracted pelvis. The same parameters are valuable for cases with Deventer's pelvis, and the sacrum flattening index value is also significant here. This latter characteristic is the only one prognostically valuable for cases with mesatipellic pelvis, permitting the prediction of possible labor complications.