An Instrumented Hammer to Detect the Rupture of the Pterygoid Plates.

IF 3 2区 医学 Q3 ENGINEERING, BIOMEDICAL Annals of Biomedical Engineering Pub Date : 2024-08-22 DOI:10.1007/s10439-024-03596-9
Manon Bas Dit Nugues, Leo Lamassoure, Giuseppe Rosi, Charles Henri Flouzat-Lachaniette, Roman Hossein Khonsari, Guillaume Haiat
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Abstract

Purpose: Craniofacial osteotomies involving pterygomaxillary disjunction are common procedures in maxillofacial surgery. Surgeons still rely on their proprioception to determine when to stop impacting the osteotome, which is important to avoid complications such as dental damage and bleeding. Our group has developed a technique consisting in using an instrumented hammer that can provide information on the mechanical properties of the tissue located around the osteotome tip. The aim of this study is to determine whether a mallet instrumented with a force sensor can be used to predict the crossing of the osteotome through the pterygoid plates.

Methods: 31 osteotomies were carried out in 16 lamb skulls. For each impact, the force signal obtained was analysed using a dedicated signal processing technique. A prediction algorithm based on an SVM classifier and a cost matrix was applied to the database.

Results: We showed that the device could always detect the crossing of the osteotome, sometimes before its occurrence. The prediction accuracy of the device was 94.7%. The method seemed to be sensitive to the thickness of the plate and to crack apparition and propagation.

Conclusion: These results pave the way for the development of a per-operative decision support system in maxillofacial surgery.

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检测翼状板断裂的仪器锤
目的:涉及翼颌脱节的颅颌面截骨术是颌面外科的常见手术。外科医生仍然依靠本体感觉来确定何时停止冲击截骨器,这对于避免牙齿损伤和出血等并发症非常重要。我们的研究小组已经开发出一种技术,包括使用带仪器的锤子,该锤子可以提供位于截骨器顶端周围组织的机械特性信息。本研究的目的是确定是否可以使用带有力传感器的锤子来预测截骨器穿过翼骨板的情况。方法:在 16 个羔羊头骨上进行了 31 次截骨手术,每次撞击都使用专用信号处理技术对获得的力信号进行分析。在数据库中应用了基于 SVM 分类器和成本矩阵的预测算法:结果表明,该设备总能检测到截骨器的穿越,有时甚至在穿越发生之前就能检测到。该设备的预测准确率为 94.7%。该方法似乎对钢板厚度以及裂纹的出现和扩展很敏感:这些结果为颌面外科围手术期决策支持系统的开发铺平了道路。
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来源期刊
Annals of Biomedical Engineering
Annals of Biomedical Engineering 工程技术-工程:生物医学
CiteScore
7.50
自引率
15.80%
发文量
212
审稿时长
3 months
期刊介绍: Annals of Biomedical Engineering is an official journal of the Biomedical Engineering Society, publishing original articles in the major fields of bioengineering and biomedical engineering. The Annals is an interdisciplinary and international journal with the aim to highlight integrated approaches to the solutions of biological and biomedical problems.
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