[Objective]To compare the efficiency of trephines with or without inner thread for spinal bony tissue biopsy.[Methods]A retrospective study was conducted on 96 patients who underwent spinal bony tissue biopsy from January 2020 to August 2023.Based on pre-operative surgeon-patient discussion,50 patients had biopsy performed by trephine with inner thread(the IT group),while the remaining 46 patients were by trephine of non-IT(the non-IT group).The perioperative items,test results and postoperative adverse reactions were com-pared between the two groups.[Results]Although there were no significant differences in biopsy segment,incision length,intraoperative blood loss and biopsy success rate between the two groups(P＞0.05),the IT group proved significantly superior to the non-IT group in terms of operative time[(17.0±2.8)min vs(19.5±3.0)min,P＜0.00l],and the positive rate of tissue harvesting(87.8％vs 64.5％,P＜0.001),in addi-tion,the former was significantly better than the latter regarding to the overall incidence of postoperative complications(20.0％vs 54.4％,P＜0.001).[Conclusion]Using the trephine with inner thread does significantly shorten the spine biopsy time,increase the positive rate of punc-ture biopsy,and reduce the incidence of postoperative complications.
bony tissue biopsytrephine with inner threadtrephine without inner threadoperation timebiopsy positive rate
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