Risk of adjacent level fracture after percutaneous vertebroplasty and kyphoplasty vs natural history for the management of osteoporotic vertebral compression fractures: a network meta-analysis of randomized controlled trials

Muhammed Amir Essibayi, Ali Mortezaei, Ahmed Y. Azzam, Ali Haider Bangash, Mohammad Mirahmadi Eraghi, Rose Fluss, Allan Brook, David Altschul, Reza Yassari, Ronil V. Chandra, Nicole M Cancelliere, Vítor Mendes Pereira, Jack W. Jennings, Christopher Gilligan, Christopher M. Bono, Joshua A Hirsch, Adam A. Dmytriw