“…For skeletally mature children or those older than 12 years, the AAOS-CPG recommend rigid locked intramedullary nailing ( 1 ). The results of previous studies have suggested that choosing the therapeutic method recommended by the CPG on the basis of the age could obtain satisfactory clinical effects ( 2 - 6 ). However, some research points to drawbacks in the CPG, such as lack of higher-level evidence to support the guidelines, little change in the clinical practice, and no new literature to update the original recommendations ( 7 - 9 ).…”