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Clinical and Experimental Obstetrics & Gynecology  2018, Vol. 45 Issue (5): 665-670    DOI: 10.12891/ceog3964.2018
Original Research Previous articles | Next articles
Postpartum radiographic changes in pelvic morphology and its relation with symptoms of pregnancy-related symphysis pain
X. Ji1, *(), M. Takahashi2, S. Morino2, T. Takakuwa1, H. Iijima1, X. Zhang5, M. Ishihara3, M. Kawagoe1, Y. Hatanaka4, F. Umezaki4, M. Yamashita4, T. Tsuboyama1, T. Aoyama1
1 Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
2 School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University, Kanagawa, Japan
3 Pilates Studio Wohl, Aichi, Japan
4 Kishokai Medical Corporation, Aichi, Japan
5 School of Medicine, Zhejiang University, Hangzhou, China
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Abstract  
Introduction: The etiology of pregnancy-related pubic symphysis pain (PSP) is usually considered as the change in pelvic biomechanics during pregnancy. However, the biomechanical changes that occur during puerperium, and the difference of radiographic dimensions in women with different types of PSP remains unknown. Materials and Methods: Fifty women with self-reported PSP were included. Two conventional X-ray radiographic dimensions obtained on the delivery day and one-month postpartum were compared by using paired t-test. Based on the self-reported VAS at one-month postpartum, variables between pain-recovery and non-recovery groups were also compared. Results: The comparison between pre- and post-values indicates a reduced distance between FLAMs (239.1 vs. 237.0 mm), PS separation (7.9 vs. 6.5 mm), and PS translation (4.1 vs. 3.1 mm). No significant differences were observed in the distance between FLAMs, width of PS separation, or pubic symphysial surface (PSS) angle between the recovery and non-recovery groups. However, the non-recovery group exhibited a significantly large change in PS translation at one-month postpartum than the recovery group (-1.8 vs. -1.1 mm). Conclusions: The pelvic radiography demonstrated a 'closure' alteration in the pelvic cavity diameter onemonth postpartum with a decrease in the distance between FLAMs and shortened PS separation. The difference in radiographic diameters between groups was not clearly evident.
Key words:  Pregnancy-related pubic symphysis pain (PSP)      Pelvic biomechanics during pregnancy      Radiography     
Published:  10 October 2018     
*Corresponding Author(s):  X. JI     E-mail:  gochickenjp@gmail.com

Cite this article: 

X. Ji, M. Takahashi, S. Morino, T. Takakuwa, H. Iijima, X. Zhang, M. Ishihara, M. Kawagoe, Y. Hatanaka, F. Umezaki, M. Yamashita, T. Tsuboyama, T. Aoyama. Postpartum radiographic changes in pelvic morphology and its relation with symptoms of pregnancy-related symphysis pain. Clinical and Experimental Obstetrics & Gynecology, 2018, 45(5): 665-670.

URL: 

https://ceog.imrpress.com/EN/10.12891/ceog3964.2018     OR     https://ceog.imrpress.com/EN/Y2018/V45/I5/665

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