Delivery of the posterior arm reduces shoulder dimensions in shoulder dystocia

6 May 2006

journal article
research article
Published by Wiley in International Journal of Gynecology & Obstetrics

Vol. 93 (3) , 233-237
https://doi.org/10.1016/j.ijgo.2006.02.026

Abstract

To evaluate a possible reduction in shoulder diameter and circumference by extending the posterior arm during delivery, for an easier birth in cases of shoulder dystocia. In this study of 33 neonates the bisacromial diameter and axilloacromial circumference were measured within 72 h of birth, first with the neonate's arms by its chest and then with 1 arm extended above its head. Reductions in diameter and circumference were evaluated. The mean +/- SD differences in bisacromial diameter and axilloacromial circumference were 1.9 +/- 0.69 cm and 2.52 +/- 1.18 cm, respectively. A greater reduction was observed in neonates with a greater shoulder diameter. In cases of shoulder dystocia, delivery of the posterior arm should significantly reduce shoulder dimensions, especially in larger fetuses, and prevent a need for excessive traction.

Keywords

This publication has 1 reference indexed in Scilit:

Maternal Morbid Obesity and the Risk of Adverse Pregnancy Outcome
Obstetrics & Gynecology, 2004