Biomechanical Evaluation of Vertebroplasty and Kyphoplasty With Polymethyl Methacrylate or Calcium Phosphate Cement Under Cyclic Loading

Abstract

Vertebroplasty and kyphoplasty seem to be equivalent methods in strengthening osteoporotic vertebrae. However, these results cannot be transferred to the treatment of fractures with these methods. A "physiologic" loading situation was achieved by complex motion, including all combinations of flexion/extension with lateral bending during eccentric cyclic loading.