We worry when we see that our one-year-old child has O-shaped knees, and when our 3-year-old child's legs have changed into an "X" shape. But is it right to worry?
Varus and valgus knees
The axis of the legs changes in children along with their motor development and with age. At the very beginning, the little ones have legs in the shape of the letter "O" and we can see this arrangement until they are around 2 years old. With feet together, one knee does not touch the other. A two-years old's legs straighten out,and we should be happy with this fact, because we think that it will stay that way, and then the legs turn into an "X". And this is completely normal up until the age of 6 or even 7, the legs will return to the correct axis. The correct structure of the lower limbs can be assessed on the basis of the so-called Mikulicz axis. This is the line that runs from the anterior superior iliac spine to the medial ankle of the foot. This line should pass through the center of the patella. If the line is on the outside of the kneecap, it is called valgus. If, on the other hand, on the inside, the elbows are varus. Of course, as I mentioned above, the change in the axis of the legs is something physiological, but it happens that for various reasons ... incorrect sitting in the letter "W", too little movement, one-sided activity, asymmetrical sit, contracture of one of the muscle groups, overweight or simply deficiency of Vitamin D mean that valgus or varus of the knees is excessive, so-called pathological. There are certain standards that distinguish physiology from pathology, when we think that our child's legs are too "bent", it is worth going to a physiotherapist who will assess the structure of the lower limbs and the entire body of your child.