A modified bone cement pusher for percutaneous vertebroplasty combined with multi-target negative pressure...

BACKGROUND: The purpose of the study was to assess the efficiency and safety of a modified bone cement pusher in percutaneous vertebroplasty (PVP) combined with a multi-target negative pressure rotary-cutting technique in puncture biopsy of bone tumors. METHODS: The biopsy was performed with the modified bone cement pusher commonly used in PVP, and a multi-target negative pressure rotary-cutting technique. A total of 120 patients with spinal and pelvic tumors undergoing needle biopsy in our department were recruited and assigned to a new biopsy device Group (Group A, n = 60) or a conventional biopsy device Group (Group B, n = 60). The puncture time, positive rate, consistency rate, and patient satisfaction of Groups A and B were compared to assess the efficiency and safety of the new device. RESULTS: No biopsy-related complications were reported in both groups. The puncture time (39.44 ± 8.885 min vs. 61.61 ± 9.880 min), positive rate (96.67% vs. 61.67%), consistency rate (96.55% vs. 81.8%), and patient satisfaction rate (100% vs. 83.33%) were significantly superb in Group A compared with those in Group B (all P < 0.05). Patients in Group A did not require repeated biopsies, and sufficient samples were obtained through the needle trajectory in PVP. All patients with a definite diagnosis were managed with appropriate treatments. CONCLUSION: Featuring high safety, positive rate, and consistency rate, the new device can be performed to collect sufficient pathological samples from multiple angles. Wide clinical replication can be expected considering its evident diagnostic efficiency for bone tumors.