Department of Oral and Maxillofacial Surgery, Kepler University Hospital GmbH, Johannes Kepler University Linz, Krankenhausstr. 9, 4021, Linz, Austria.
NumBioLab, Ludwig-Maximilians University of Munich, Munich, Germany.
Eur J Med Res. 2021 Mar 15;26(1):25. doi: 10.1186/s40001-021-00495-w.
The accuracy of computer-assisted biopsies at the lower jaw was compared to the accuracy of freehand biopsies.
Patients with a bony lesion of the lower jaw with an indication for biopsy were prospectively enrolled. Two customized bone models per patient were produced using a 3D printer. The models of the lower jaw were fitted into a phantom head model to simulate operation room conditions. Biopsies for the study group were taken by means of surgical guides and freehand biopsies were performed for the control group.
The deviation of the biopsy axes from the planning was significantly less when using templates. It turned out to be 1.3 ± 0.6 mm for the biopsies with a surgical guide and 3.9 ± 1.1 mm for the freehand biopsies.
Surgical guides allow significantly higher accuracy of biopsies. The preliminary results are promising, but clinical evaluation is necessary.
比较了下颌骨计算机辅助活检与徒手活检的准确性。
前瞻性纳入下颌骨有骨病变且需要活检的患者。每位患者使用 3D 打印机制作两个定制的骨模型。将下颌骨模型安装到幻影头模型中，以模拟手术室条件。研究组采用手术导板进行活检，对照组采用徒手活检。
使用模板时，活检轴与规划的偏差明显更小。使用手术导板的活检偏差为 1.3±0.6 毫米，徒手活检的偏差为 3.9±1.1 毫米。
手术导板可显著提高活检的准确性。初步结果很有希望，但需要进行临床评估。
