In this study results obtained in the prospective group will be compared with those obtained in the retrospective group.~Total N° of patients: 16~PROSPECTIVE GROUP (treated WITH the guidance of endosight):~N° of patients: 8~RETROSPECTIVE GROUP (treated WITHOUT the guidance of endosight):~N° of patients: 8~Main objective of the study:~Reduction of execution times by at least 10 minutes; Reduction of the number of CT scans by at least 2 scans.~N°of hospitals involved: 2.~Duration: maximum 6 months from the date of the first enrollment.~No follow-up is expected.
The goal of this clinical study is to evaluate the duration of the procedure, the precision (distance between the needle tip and the centre of the target), and the safety of endosight system in the guidance for bone biopsies.