What prenatal imaging is typically used to confirm congenital club foot?

Ultrasound is the preferred prenatal imaging modality to confirm congenital club foot, primarily because it provides a safe, non-invasive means to visualize fetal anatomy in real time. This imaging technique is effective in displaying the position and structure of the foot, making it possible to identify the characteristic foot deformities associated with club foot well before delivery.

Additionally, ultrasound can be performed throughout pregnancy without the exposure to ionizing radiation, which is a risk associated with X-rays and CT scans, making it the most suitable imaging choice in this context. It also allows for the evaluation of other related anatomical structures and conditions, providing a comprehensive understanding of the fetal state.

While X-rays can definitively show the bony structures of the foot after birth, and MRI offers detailed imaging of soft tissues, these methods are not commonly used in the prenatal setting. CT scans are also not typically employed in prenatal evaluations due to radiation concerns. Thus, ultrasound stands out as the best option for diagnosing congenital club foot prenatally.