Legg-Calve-Perthes disease (LCPD) is a rare hip disease. It affects children 2-12 years old. LCPD is a disorder of the top of the leg bone. The disorder interrupts blood flow to the hip. The loss of flow impairs bone growth and causes deformity. Over time, the bone breaks and reforms causing the child to limp. LCPD most often occurs in just one hip, with only about 10% of cases involving both sides.

Damage and repairs to the femoral head causes a limp.

The cause of LCPD is unknown. Infection, trauma, and inflammatory processes are possible causes.

Factors that may increase your child’s chance of developing LCPD include:

The primary symptom of LCPD is a limp when walking. This can occur in children 2-12 years old. It peaks in children 4-8 years old. Other symptoms may include:

Your doctor will ask about your child’s symptoms and medical history. A physical exam will be done. During the exam, your child’s hip will be examined to see how far it can move. The doctor may refer your child to a specialist. An orthopedist focuses on bones and joints.

Images may need to be taken of your child's bones. This can be done with:

Talk with your doctor about the best plan for you. Options include the following:

If your child’s symptoms are mild, your doctor may prescribe physical therapy. A therapist will work with your child to maintain range of motion. You may be taught certain exercises to do with your child at home.

Medical treatment is used to prevent further injury to the hip. It may include using crutches , traction, a brace, or cast.

In some cases, your child may need surgery. Bone removal may be done to reposition or reshape the hip bone.

There are no known ways to prevent this rare disease.

Last Reviewed May 2013