Related Experiment Videos
Radiographic evaluation of breech presentation: is it necessary?
T Fontenot1, B Campbell, E Mitchell-Tutt
1Department of Obstetrics and Gynecology, University of Kentucky Chandler Medical Center, Lexington 40536-0084, USA.
Summary
Ultrasound effectively identifies fetal position and cervical spine flexion in breech presentations, proving accurate during labor. This imaging technique can help determine suitability for labor, reducing the need for radiography.
Area of Science:
- Obstetrics and Gynecology
- Medical Imaging
- Fetal Medicine
Background:
- Breech presentation requires careful assessment of fetal position and cervical spine alignment.
- Accurate determination of fetal neck position is crucial for managing labor and delivery in breech cases.
Purpose of the Study:
- To evaluate the diagnostic accuracy of ultrasound in identifying fetal presentation type and cervical spine flexion in breech cases.
- To compare ultrasonographic findings with radiographic assessments for breech presentations.
Main Methods:
- Retrospective comparison of radiographic and ultrasonographic data in 52 fetuses with breech presentation.
- Definition of cervical spine flexion angle (mandible to cervical spine axis) and categorization (full flexion, military, partial extension, full extension).
Main Results:
- Ultrasound showed 77% concordance with radiography for presentation type and 64% for cervical spine flexion angle.
- Accuracy improved in fetuses during labor, with ultrasound correctly identifying presentation type in all cases.
- Ultrasound accurately identified full cervical spine flexion (<90 degrees), correlating with radiographic findings and excluding neck extension.
Conclusions:
- Ultrasound is a reliable tool for assessing fetal presentation and cervical spine flexion in breech cases.
- Sonographic identification of full cervical spine flexion can potentially obviate the need for radiographic assessment before a trial of labor, especially in women in labor.