Babies born with clubfoot should begin treatment with casting within seven to 10 days of birth while the baby’s bones are still soft. In most cases, you can prepare for this well before the baby is born. Most cases of clubfoot are diagnosed before birth during a routine ultrasound. About 80% of clubfoot cases can be discovered at 24 weeks. After the baby is born, there may be an X-ray or a CT scan done to show the baby’s foot bones, ligaments, and tendons, and then treatment can begin.