“…Furthermore, armed kyphoplasty may be associated with lower rates of pain and adjacent vertebral fractures, probably due to its superior capacity for vertebral reduction and maintenance of this reduction in the long term, which is also associated with a higher quality of life due to improved posture, reduction of tension moments, and relaxation of the paravertebral muscles, minimizing its fatigue. These theoretical conclusions, in comparison with kyphoplasty, have already been demonstrated in some biomechanical studies on human cadavers and in clinical studies regarding fractures of osteoporotic and neoplastic origin, and are therefore likely, but still to be defined, to be similar also regarding fractures of the traumatic nature ( 28 , 29 , 30 , 40 , 42 , 43 , 44 , 45 , 46 , 47 , 54 , 59 , 61 , 62 , 65 , 75 , 103 , 105 , 107 ). Furthermore, we consider that currently there are two main types of expandable intravertebral implants with different indications for vertebral fractures: reducing and space-occupying implants, which replace the majority of the interior of the vertebral body, such as VBS® stents; and reducing implants, which elevate vertebral endplates and preserve intact bone trabeculae, such as Spinejack®.…”