@Bertie68 - A neighbor boy has congenital coxa valga. He gets around okay, but his gait is kind of clumsy. When he walks or runs, he is flat footed and doesn't roll his foot.
When he finishes his step, he spins on the ball of the foot. He experiences tight muscles in his legs, e.g. hamstring muscles, and the arch of his feet.
All the unusual movements of walking and running are attempts to compensate for the deformity, coxa valga. His parents are taking him to therapy to see if it will help him. Stretching exercises, abdominal strengthening, and an arch support in his shoes hopefully will help. The parents are helping him with his gait.
He loves sports, but has a hard time competing with the other boys. I hope he gets the help he needs.