Hip arthroscopy in Legg-Calve-Perthes disease.

The case of a 7-year-old boy with Legg-Calve-Perthes disease is presented. He had a prominent island of superficial epiphyseal ossification in his right femoral head, an unusual finding in Legg-Calve-Perthes disease. Hip arthroscopy was used successfully to identify and treat the lesion. After the procedure, the patient had a reduction in pain and an increase in range of hip motion. We believe that this case demonstrates the effective use of hip arthroscopy in the treatment of this unusual sequela of Legg-Calve-Perthes disease.