Sacrum Anterior (SA) means the fetal sacrum is closest to the mother's symphysis. Left Sacrum Anterior (LSA) means the fetal sacrum is closest to the mother's symphysis and rotated slightly to the mother's left (clockwise from direct SA).

Left sacrum anterior (LSA)—the buttocks, as against the occiput of the vertex presentation, like close to the vagina (hence known as breech presentation), which lie anteriorly and towards the left. Right sacrum anterior (RSA)—the buttocks face anteriorly and towards the right.

2011年4月28日 · Sacrum Anterior (SA) means the fetal sacrum is closest to the mother’s symphysis. Left Sacrum Anterior (LSA) means the fetal sacrum is closest to the mother’s symphysis and rotated slightly to the mother’s left (clockwise from direct SA).

Sacrum Anterior (SA) means the fetal sacrum is closest to the mother’s symphysis. Left Sacrum Anterior (LSA) means the fetal sacrum is closest to the mother’s symphysis and rotated slightly to the mother’s left (clockwise from direct SA).

2015年9月18日 · Sacrum is on the left side of the pelvis, back is on mom’s left side. SA: Sacrum Anterior. Sacrum is in the central portion of the pelvis, baby’s back is directly central on mom’s abdomen.

2025年1月22日 · Placement above the umbilicus on the left side is appropriate when the fetus is in the left sacrum anterior position. Placement below the umbilicus near the left groin is appropriate when the fetus is in the left occiput anterior or left occiput posterior position.

Left sacrum anterior (LSA)—the buttocks, as against the occiput of the vertex presentation, lie close to the vagina (hence known as breech presentation), which lie anteriorly and toward the left. Right sacrum anterior (RSA)—the buttocks face anteriorly and toward the right.