TY - CHAP M1 - Book, Section TI - Connective Tissue Disorders A1 - Cunningham, F. Gary A1 - Leveno, Kenneth J. A1 - Bloom, Steven L. A1 - Dashe, Jodi S. A1 - Hoffman, Barbara L. A1 - Casey, Brian M. A1 - Spong, Catherine Y. PY - 2018 T2 - Williams Obstetrics, 25e AB - Owing to the great vascularity incident to pregnancy, the various pelvic joints always show a somewhat increased motility. In rare instances, particularly when the pelvis is contracted in the lower portion, spontaneous rupture of the symphysis pubis or one or both sacro-iliac joints has been observed.—J. Whitridge Williams (1903) SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - obgyn.mhmedical.com/content.aspx?aid=1160787159 ER -