VDR and bone fracture: To evaluate the distribution of VDR gene polymorphisms (FokI, BsmI, ApaI, and TaqI) in patients with osteoporotic vertebral fractures and to assess their association with fracture susceptibility.<h4>Methods</h4>This case-control study included 86 individuals: 43 patients who underwent vertebroplasty for osteoporotic vertebral fractures and 43 osteoporotic individuals without vertebral fractures serving as controls.