Magnetic resonance image findings in congenital talipes equinovarus

Area of Science:

• Pediatric Orthopedics
• Medical Imaging
• Anatomy

Background:

• Congenital talipes equinovarus (CTEV), commonly known as clubfoot, is a complex birth defect affecting the foot and ankle.
• Accurate imaging is crucial for understanding the intricate bony deformities in CTEV to guide treatment.
• Traditional imaging methods may not fully elucidate the spatial relationships of the tarsal bones in infants.

Purpose of the Study:

• To evaluate the utility of Magnetic Resonance Imaging (MRI) in characterizing the foot deformities associated with congenital talipes equinovarus in infants.
• To identify the optimal MRI sequences and planes for visualizing the key anatomical abnormalities in CTEV.

Main Methods:

• Ten infants diagnosed with congenital talipes equinovarus underwent foot imaging using Magnetic Resonance Imaging (MRI).
• Images were acquired using various sequences, with particular attention to intermediate density and T2-weighted sequences.
• Analysis focused on the transverse and sagittal planes to delineate the relationships between the talus, calcaneus, and other tarsal bones.

Main Results:

• Intermediate density and T2-weighted MRI sequences were found to be most informative for imaging CTEV.
• In the transverse plane, the primary deformity involves medial deviation of the talar neck/head and internal rotation of the calcaneus.
• Sagittal plane imaging revealed parallelism in the subtalar joint relationship, a key characteristic of the CTEV deformity.

Conclusions:

• MRI, particularly with intermediate density and T2 sequences, is a highly effective tool for assessing congenital talipes equinovarus in infants.
• Imaging in the transverse and sagittal planes provides critical information about the talar and calcaneal deformities.
• These detailed MRI findings can aid in surgical planning and understanding the pathomechanics of CTEV.