Wang X, Han J, Li Y, et al. - This study was attempted to evaluate the comparative efficacy and safety profile of curettage and mixed bone grafting without an instrument or with elastic intramedullary nailing in the treatment of humeral bone cyst in children. Between August 2012 and February 2019, researchers conducted a retrospective study including a total of 48 children harboring humeral bone cyst in the hospital. Individuals were classified into an elastic nailing group with the application of elastic intramedullary nailing (n = 25) and the control group without using an instrument (n = 23) during the management of curettage and mixed bone grafting. Researchers examined follow-up radiographic outcomes to observe bone healing, local recurrence and internal fixation loosening, and other postoperative complications. The results of this study demonstrate that children with humeral cyst treated with curettage and mixed bone grafting with the additional use of elastic intramedullary nailing exerted superior results to those without using an instrument as there are beneficial outcomes and safety profile and no complications.