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Published on: October 5, 2009
Occiput-spine relationship: shoulders are more important than head
A Svelato1, A Ragusa, P Alimondi
1Department of Obstetrics and Gynecology, Massa Carrara General Hospital, Massa Carrara, Italy. alessandrosvelato@virgilio.it.
European Review for Medical and Pharmacological Sciences
|April 8, 2017
Summary
Fetal spine position significantly influences fetal head position at birth. Anterior spine position is associated with higher rates of cesarean delivery and fewer spontaneous vaginal births.
Area of Science:
- Obstetrics and Gynecology
- Fetal Medicine
- Perinatal Ultrasound
Background:
- Fetal head presentation is a key determinant of delivery mode.
- The role of fetal spine position in influencing fetal head presentation and delivery outcomes is not fully understood.
Purpose of the Study:
- To investigate the relationship between fetal spine position and fetal head (occiput) position during labor.
- To determine if fetal spine position impacts the mode of delivery.
Main Methods:
- A multicenter prospective observational study involving 86 women.
- Intrapartum ultrasound was used to assess fetal occiput and spine positions.
- Occiput rotation and delivery modality were analyzed in relation to spine position.
Main Results:
- At labor onset, 52.3% of fetuses had a posterior occiput position and 81.5% had an anterior transverse spine position.
- By birth, 90.4% of fetuses had both occiput and spine in anterior positions.
- Cesarean section rates were significantly higher (50% vs. 8%) and spontaneous vaginal delivery rates significantly lower (14% vs. 71%) in the posterior spine (SP) group compared to anterior spine (SA) groups.
Conclusions:
- Fetal spine position appears to play a critical role in determining fetal occiput position at birth.
- Spine position is a significant factor influencing delivery outcomes, including the need for interventions.
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