Patient Safety; Self-Assessment; Spinal Fractures/surgery; Vertebroplasty/methods; Adult; Aged; Analysis of Variance; Bone Cements/therapeutic use; Cohort Studies; Female; Follow-Up Studies; Fractures, Compression/diagnostic imaging; Fractures, Compression/surgery; Fractures, Spontaneous/diagnostic imaging; Fractures, Spontaneous/surgery; Humans; Lumbar Vertebrae/diagnostic imaging; Lumbar Vertebrae/surgery; Male; Middle Aged; Minimally Invasive Surgical Procedures/adverse effects; Minimally Invasive Surgical Procedures/methods; Multilevel Analysis; Pain Management/methods; Pain Measurement; Pain, Postoperative/etiology; Pain, Postoperative/physiopathology; Prospective Studies; Radiography; Spinal Fractures/diagnostic imaging; Statistics, Nonparametric; Thoracic Vertebrae/diagnostic imaging; Thoracic Vertebrae/surgery; Time Factors; Treatment Outcome; Vertebroplasty/adverse effects