Reply to Letter to the Editor Regarding the Article “Bone Metabolism in the Healing Process of Lumbar Interbody Fusion-Temporal Changes of Bone Turnover Markers”

We would like to thank the authors for their interest in our study and for their comments. In response to the first point raised by the authors, we measured bone mineral density (BMD) by dual-energy x-ray absorptiometry (DEXA) at lumbar vertebrae and femur neck, in addition, we checked for spine fractures by whole spine x-ray in all the subjects of this study. As described in the Materials and Methods section, osteoporosis is diagnosed by these...