The hip joint is the main support point for the human body when carrying weight. With the existence of the hip joint, people can do physical work and walk steadily, so the role of the hip joint in the human body is also significant. But for infants and young children, there are often cases where the hip joint does not grow abnormally within the normal range. So, what is the normal range of hip joint in infants and young children?
Normal range of hip joint in infants and young children
The normal range of hip joint in normal newborns is 30 ° to 40 °, 23 ° to 28 ° at 1 year old, and 20 ° to 25 ° at 3 years old. Those who exceed this range indicate incomplete development of the hip socket. As age increases, the pathological changes become more severe and the treatment effect becomes worse.
For patients suspected of having congenital hip dislocation, pelvic radiographs of both hip joints should be taken at least 3 months after birth. The developmental status of the hip joint is often measured by the inclination of the acetabular angle, and for those under 1 year old, the sling method with pedals is used.
What should I do if my baby's hip joint is abnormal
At 8 to 9 weeks after birth, if subluxation or dislocation of the hip joint is found, a suspender strap can be used for 6 to 9 months. Only hip joint extension activities are restricted, and other activities are not restricted. Except for a few factors that hinder reduction in the hip joint, the vast majority of children can achieve reduction treatment without experiencing aseptic necrosis of the femoral head.
The key to the prognosis of this disease lies in early diagnosis, and the earlier the treatment, the better the effect. The Y line is formed by connecting the center points of the bilateral acetabular cartilage in a straight line and extending it. Connect a line from the center point of the Y-line cartilage to the most prominent point on the outer edge of the top of the bony acetabulum, which is called the C-line. The angle between the C-line and the Y-line is the acetabular angle or acetabular index.
The normal range of hip joint depends on the age of the baby, and the hip joint of babies of different ages is different. If it is found that the baby's hip joint is abnormal, parents must treat the baby as soon as possible. Not only this disease, but as long as the baby is sick, they should see a doctor early to avoid missing the best time to treat the baby.
