A primigravida at term has a shoulder dystocia during delivery. The McRoberts maneuver and suprapubic pressure are attempted but fail. The operator decides to perform an internal rotation maneuver. Which maneuver involves rotating the fetal shoulders to the oblique diameter by applying pressure on the posterior shoulder?

• A Woods screw maneuver ✓
• B Rubin II maneuver
• C Delivery of the posterior arm
• D Zavanelli maneuver

Explanation

The Woods screw maneuver involves placing two fingers on the anterior surface of the posterior shoulder and rotating it 180 degrees, which brings the shoulders into the oblique diameter and reduces the shoulder-to-hip diameter. Rubin II involves pushing the anterior shoulder toward the fetal chest to reduce the bisacromial diameter.

Reference: Williams Obstetrics, 26th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.