Change in triggered EMG thresholds for thoracic pedicle screws caused by pneumothorax during surgery for adolescent idiopathic scoliosis. Report of two cases C. Madrid; A. Gómez-Rice; S. Cordón; E. Sanz-Barbero; L. Zúñiga;

Outcomes of vertebroplasty in osteoporotic vertebral fractures with limited indication R. Navarro-Navarro; T. Fernández-Varela; A. Montesdeoca-Ara; J.A. Lorenzo-Rivero;