Switzer T, Naraine N, Chamlati R, et al. - This retrospective study was undertaken to examine the link between preoperative hemoglobin and red blood cell transfusion among children receiving spine surgery following the implementation of preoperative iron supplementation protocol. Experts analyzed 382 patients who received posterior spinal fusion surgery between January 2013 and December 2017 and were given preoperative oral iron. Factors related to red blood cell transfusion, in multivariable logistic regression analysis, were: nonidiopathic etiology of the scoliosis, the Cobb angle, and number of vertebrae fused. According to findings, a decreased requirement for red blood cell transfusion was observed in relation to higher preoperative hemoglobin levels (>130 g/L) among pediatric patients who have received iron supplementation before receiving posterior spinal fusion in experts' institution. The impact of iron supplementation, the optimal dosing, and span of supplemental iron treatment remained unclear at this time.