Question

The flexion point in a ventouse delivery is located at which of the following positions on the fetal head?

• A. 3 cm posterior to the anterior fontanelle
• B. 3 cm anterior to the posterior fontanelle
• C. 6 cm anterior to the posterior fontanelle
• D. Midway between the anterior and posterior fontanelle

Hint:

During a ventouse delivery, the flexion point should be approximately 3 cm anterior to the posterior fontanelle to ensure safe and effective use of the vacuum.

Answer 1

The Correct Option is B

In the context of ventouse (vacuum) delivery, the flexion point on the fetal head is an important anatomical landmark. Correct positioning of the ventouse cup is essential to provide effective traction during delivery without causing harm to the fetus.

The flexion point is located at 3 cm anterior to the posterior fontanelle. The posterior fontanelle is located at the junction of the sagittal suture and the lambdoid suture on the fetal skull, and moving 3 cm anteriorly from this point positions the cup correctly to achieve optimal traction while ensuring minimal strain on the skull and neck of the fetus.

By selecting the option of "3 cm anterior to the posterior fontanelle," the healthcare provider ensures the ventouse is placed in the correct position to assist in the delivery process effectively.