! Balloon kyphoplasty versus non-surgical fracture management for treatment of painful vertebral body compression fractures in patinets with cancer: a multicentre, randomised controlled trial J. Berenson, R. Pflugmacher, P. Jarzem, J. Zonder, K. Schechtman, J. B. Tillman, L. Bastian, T. Ashraf, F. Vrionis Lancet Oncol 2011 ! Balloon kyphoplasty in the treatment of metastatic disease of the spine: a 2-year prospective evaluation R. Pflugmacher - R. Taylor - A. Agarwal - I. Melcher - A. Disch - N. P. Haas - C. Klostermann Eur Spine J (2008)