Korean J Obstet Gynecol.
2001 Apr;44(4):775-779.
Ultrasonographic Evaluation of Pregnancy Associated Change
in Width of the Symphysis Pubis in Korean Women
- Affiliations
-
- 1Department of Obstetrics and Gynecology, Samsung Cheil Hospital & Women's HealthcareCenter,
SungKyunKwan University, School of Medicine, Seoul, Korea.
- 2Department of Radiology, Samsung Cheil Hospital & Women's HealthcareCenter,
SungKyunKwan University, School of Medicine, Seoul, Korea.
- 3Department of Orthopedic Surgery, Samsung Cheil Hospital & Women's HealthcareCenter,
SungKyunKwan University, School of Medicine, Seoul, Korea.
Abstract
OBJECTIVE
To evaluate pregnancy associated change in width of the symphysis pubis.
MATERIALS AND METHODS
497 women were evaluated from Jan. 2000 to Dec. 2000. They were
non-pregnant, pregnant and postpartum state without complaning of pelvis pain. Ultrasonographic measurements of
the width of the symphysis pubis were performed.
RESULTS
The population study shows 29.3 year-old as the mean age., gravid 2 and parity 0.6 . They
consist of non-pregnant(n=36), first trimester(n=79), second trimester(n=118), third trimester(n=94), postpartum
4 weeks(n=84) and postpartum 8 weeks(n=86) women. The width of symphyseal joint was 3.93+0.05
mm(0.8-8.8 mm) among the total population, 3.20+0.17 mm in non-pregnant, 3.76+0.14 mm in first trimester,
3.95+0.10 mm in second trimester, 4.72+0.15 mm in third trimester, 3.98+0.12 mm in postpartum 4 weeks,
3.37+0.12 mm in postpartum 8 weeks women.
The difference of the symphyseal joint width is statistically significant between non-pregnant and
pregnant women(P=0.00). However the width of symphyseal joint were recovered until postpartum 8 weeks.
There was no statistical difference of the width between first and second trimester,however significant
difference between third trimester and before(P=0.00).
The equation of regression ananlysis in the width of symphyseal joint was Y=3.25+0.04 x Gestation
weeks during pregnancy(P>0.05).
CONCLUSION
The width of the symphyseal joint had increased as gestational week advanced, and
recovered until postpartum 8 weeks in pregnant women not complaining of pelvic pain.