Pharmahealthblog. Health and medical information

Some babies are born with a dislocation, or lack of fit, between the top of the thigh bone (which is shaped like a ball) and the socket in the hip bone. This occurs in approximately 1 in 700 births, and is more common in girls by a ratio of 4:1. Usually only one hip is affected, but both hips are involved in 25% of cases.

Cause

There is no one cause of congenital dislocation of the hip (CDH). Genetic factors seem to play a part, as it is more common in girls than in boys, and especially in daughters of mothers who themselves had CDH as babies. The posture of the baby in the womb also seems important, so that it is more common in breech presentations (where the baby is born legs first instead of the usual head first).

Clinical features

Often there are no easily detectable signs of CDH in infancy. Sometimes the skin creases in the thighs are asymmetrical. Parents may notice when changing the nappy that one thigh is restricted in its movement, and cannot be laid all the way back on the table. Later, an abnormal position of the leg on the affected side may be noticed, and the leg itself may be shorter than the other due to dislocation. There may be a delay in walking, or the child may walk with a limp or with the pelvis tilted to one side.

During the doctor’s examination of a newborn baby, both hips are carefully checked for any signs of dislocation. Several tests are performed specifically to detect CDH or an unstable hip. On examination of your baby’s hip a faint click may be heard (‘clicky hips’), which may be due only to stretched ligaments and simply requires monitoring. If this click is accompanied by an abnormal movement of the hip, the diagnosis of congenital hip dislocation is likely.

Investigation

A very careful physical examination of both hips should be done in the first few-days of life, and repeated at 6 weeks of age. In experienced hands, this should detect most cases of CDH. Sometimes an X-ray of the hip may be helpful, and ultrasound is being increasingly used.

*395\90\8*

FLAT FEET

Babies often appear to have flat feet because the soles of their feet are filled with pads of thick fat. The fatter the baby, the flatter the feet look. Once babies start walking, this arches become more defined because the ligaments and muscles start more working more, and by the age of 3 years, the feet acquire their final shape. After this age, a child who has flat feet will wear down the heels of his shoes on the inner sides very quickly. The entire surface of the sole of the foot is in contact with the ground, and the arches are not visible. This occasionally causes the child pain, especially when playing sport. Children with flat feet do not need any treatment. In particular, there is no need for arches, supports or special shoes. If flat feet persist into adult life, arches may reduce the wear on shoes.

HEELS, PAINFUL

This condition is especially common in older children and young adolescents. Sometimes it is caused by a strain of the achilles tendon where it attaches to the bone of the heel. Pain is usually experienced after sport. Usually no treatment is necessary, because the condition improves with age and eventually disappears. Raising the heel of the shoe on the affected side sometimes helps. The child should be encouraged to continue playing sport.

The other cause of painful heels is a bony spur (calcaneal spur) on the back of the heel bone, which rubs against the bottom or back of the shoe. The overlying skin becomes reddened and bruised. Treatment consists of inserting a small pad in the shoe to protect the affected area. Occasionally surgery is needed to chip off the bony protrusion.

*394\90\8*

Growing pains are very common. It is said that 1 in 5 children suffers from them at some stage, especially during the early school years.

Cause

The cause of growing pains is uncertain. They are said to be related to exercise, but this is not always so, and in most cases there are no known precipitating events.

Clinical features

The child complains of aching or a burning sensation in the legs — in the thighs, calves, feet or joints. The pains can also occur, though far less commonly, in the arms or other parts of the body. They usually occur at night, and sometimes wake the child from sleep, but are also common in the daytime. They are rarely severe enough to interfere with daily activity. In most children, the pain or discomfort is transient, irregular and unpredictable — it tends to come and go. The natural history is for growing pains to get better over time.

Investigations

No investigations are usually necessary. Occasionally the doctor will order an X-ray or blood test to exclude other conditions, such as a fracture or inflammation.

Treatment

There is no specific treatment for growing pains. Massaging the affected area may help. Occasionally a mild analgesic is given to the child, but mostly all that is necessary is reassurance and the general measures described above. There is no need to restrict activity.

When to see your doctor

See your doctor if you suspect that there is something more serious going on — if the pains are very severe and persistent, if there is a limp, or an affected part is tender or feels hot.

Prevention

There is nothing that can be done to prevent growing pains.

*392\90\8*

There are several types of fracture commonly seen in children. These include: Greenstick fracture in which a bone is bent rather than broken. This is common in young children, whose bones are malleable.

Undisplaced fracture in which the break does not interfere with the alignment of the bone fragments, so that the two ends remain in contact with each other. Open fracture in which one end of the broken bone is exposed to the outside through the skin, and is thus susceptible to becoming infected.

Clinical features

The area around the fracture usually becomes swollen and sometimes there is an obvious deformity visible. The child may hold his arm or leg perfectly still because even the slightest movement increases the pain.

Investigations

The diagnosis of a fracture should always be confirmed by an X-ray.

*391\90\8*