Progress in understanding Legg-Calvé-Perthes disease etiology from a molecular and cellular biology perspective.

Legg-Calvé-Perthes disease (LCPD) is a hip disease caused by ischemia of the femoral epiphysis in children, which occurs in children aged 4-8 years (mean 6.5 years), with a male-to-female ratio of about 4:1. The disease has been reported for more than 100 years, but its etiology has not been elucidated.

Rotational osteotomy of forearm bones for treatment of congenital radioulnar synostosis in children.

Background: Congenital radioulnar synostosis (CRUS) is a rare upper limb deformity characterized by impaired rotational movement of the forearm. Rotational osteotomy is a commonly employed surgical procedure for treatment. This study aimed to analyze its surgical efficacy in treating CRUS in children.