Legg-Calve-Perthes disease

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Blood supply to bone

Legg-Calve-Perthes disease is when the ball of the thighbone in the hip doesn't get enough blood, causing the bone to die.

Coxa plana; Perthes disease

Legg-Calve-Perthes disease usually occurs in boys 4 - 10 years old. There are many theories about the cause of this disease, but little is actually known.

Without enough blood to the area, the bone dies. The ball of the hip will collapse and become flat. Usually only one hip is affected, although it can occur on both sides.

The blood supply returns over several months, bringing in new bone cells. The new cells gradually replace the dead bone over 2 - 3 years.

Review Date: 09/16/2010
Reviewed By: Sameer Patel, MD, Assistant Professor of Pediatrics, Columbia University, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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