BioMed Research International has retracted the article titled “The Effect of Synthetic Osteoconductive Bone Graft Material for Augmentation of Internally Fixed Unstable Trochanteric Fractures” [1] due to concerns with the study design raised by the authors. The authors explained that the study was not a randomized trial as described in the article, but a retrospective observational study in which patient assignment to the CaP and control groups was not randomized.