Anterior cruciate ligament tears in children.

Anterior cruciate ligament (ACL) injuries have become common in children and adolescents who practice competitive sports, accounting for 0.5-3% of all ACL injuries. Magnetic resonance imaging (MRI) is useful for diagnosis and treatment planning, but is no better than clinical examination, especially when the MRI is interpreted by less experienced health care professionals. Management of ACL deficiency in children is still controversial, but the present trend is towards early reconstruction, because repeated instability episodes may lead to secondary lesions of the knee, and induce meniscal tears and early degenerative alterations of the joint. Postoperatively, complications are rare, and most of the documented growth complications are secondary to avoidable technical errors such as placement of a fixation device across a growth plate. We recommend to reconstruct the ACL paying attention to avoid irreversible damage to the epiphyseal growth plates of the lower femur and upper tibia.