What are the causes of newborns' inability to straighten their legs?

Many newborns cannot straighten their legs, which makes many parents particularly worried. They are afraid that their children will have diseases and become disabled. Therefore, many parents want to fully understand the causes of newborns' inability to straighten their legs. The following content gives parents a detailed introduction. For many parents, in order to understand the causes clearly, they need to take a comprehensive look at the following introduction.

Generally speaking, it is normal for young babies to have bent calves. Because the muscles attached to the long bone on the inside of his calf (tibia) are thinner than those on the outside, the baby's calves appear a little bent, which is actually an illusion. The fetus also has inward-turned toes, which is caused by the fetus being cuddled in the mother's womb for a long time. After the baby is born, his limbs will slowly "stretch out", but some babies are slow to "stretch". When they learn to walk, their toes will bend inward and they will walk unsteadily. At around 1 year old, their legs will be slightly bent, and X-rays will also show bent calf bones, but there are no X-ray manifestations of rickets. This is because the children at this age have just started to walk, and their legs cannot bear their own body weight well, so their calves are temporarily bent. Generally, they will return to normal by the age of 2-3, and X-rays also show that the original bending of the calf bones has been corrected. Both situations are normal. For babies with introversion, the soles of their feet will tilt inward, but there will be basically no problems with their feet and knees. Babies with "duck feet" are less stable when learning to walk and are more likely to fall. If the baby's condition has not improved after the age of 2, the doctor may put a splint on the baby's foot and use a limb brace to correct the foot position, which may take a year. If the condition has not improved by the age of five or six, the doctor will consider performing surgery to loosen the muscles in the child's feet.

The so-called abnormal means that the baby suffers from severe rickets. Due to calcium deficiency, the bones become thin and softened. When the child stands or walks, the lower limbs cannot bear weight and the calves become bent. This is what we call "O"-shaped legs and "X"-shaped legs. For children with "O"-shaped legs, the curvature of their legs is more serious than normal. During the examination, the two ankle joints are brought together, and the two knee joints are often separated and cannot be brought together, with a gap of more than 3cm between the two knees. In "X"-shaped legs, the knees are close together but the ankles are not, and the distance between the two ankles is more than 3cm. X-rays show not only bending of the calf bones, but also other characteristic features of rickets.

It should be said that most cases of calf bending in infants are normal, while calf bending caused by rickets is a minority after all.

The above is a comprehensive introduction to the causes of newborns' inability to straighten their legs. After a comprehensive understanding, I believe you have a better understanding. The inability to straighten the legs of newborns is related to many causes. Therefore, after a comprehensive understanding of the above introduction, it is best to go to a large hospital for a comprehensive examination. After determining the condition, use the correct treatment method to straighten the child's legs as soon as possible.