Subject Area

Obstetrics and Gynecology

Document Type

Original Study


Objective: To study the evaluation of the value of the posterior cervical angle, and cervical length, measured by transvaginal ultrasonography, compared with the Bishop Score in the prediction of successful labor induction.

Background: Induction of labor (IOL) represents a common procedure in everyday obstetric practice, it is used in 30-40% of women in labor. Induction of labor refers to the initiation of uterine contractions before the spontaneous onset of labor, which may be either elective or indicated.

Method: Prospective observation of a study. Department of Obstetrics and Gynaecology, Shebin El-Kom University Hospitals. From March to December 2020.

Results: Our includes 90 candidates for labor induction, after assessment of posterior cervical angle and cervical length (by transvaginal ultrasonography) and Bishop score.

Conclusion: In this study, we found that success of labor induction can be highly predicted by transvaginal sonography of cervical length, and posterior cervical angle as it is more objective and accurate than Bishop Score, This is due to the significant correlation between successful labor induction and posterior cervical angle.