根据状体运动的包膜表面设计定制的腔假体:通过in silico肌肉骨模拟验证
Jun-Lin Wang1, Jing Wang1, Ke-Nan Chen1
1Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry, Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, China.
Frontiers in bioengineering and biotechnology
|November 29, 2023
概括
与传统设计相比,一个新的关节 (TMJ) 穴位假肢,采用带运动 (ESCM) 的外表面设计,提供了改善的部运动和减少肌肉紧张.
科学领域:
- 生物医学工程 生物医学工程
- 生物力学 生物力学
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- 关节 (TMJ) 疾病会影响下功能.
- 目前的TMJ假肢可能会限制运动并导致肌肉疲劳.
- 优化TMJ假肢设计对于恢复自然部运动至关重要.
研究的目的:
- 开发和评估一种基于囊运动 (ESCM) 的外表面的新型TMJ假肢.
- 将基于ESCM的假肢的生物力学性能与现有设计进行比较.
- 评估不同假肢对下下肢动力学,肌肉活动和关节力量的影响.
主要方法:
- 一个定制的TMJ假肢是使用特定主体的形光束计算机断层扫描 (CBCT) 数据和ESCM概念设计的.
- 创建了一个多体肌肉骨模型,并与同时的动力学和电肌图 (EMG) 数据进行验证.
- 模拟对比了基于ESCM的假肢与Biomet和圆形假肢在开闭动作过程中.
主要成果:
- 与Biomet (35mm) 和圆形 (33mm) 假肢相比,基于ESCM的假肢实现了更大的最大口位移 (36mm).
- 圆形假肢模型导致最大口附近的位.
- 基于ESCM的假肢减少了消化道和侧面状肌肉的激活,并降低了完整侧面对状肌肉滑动的抵抗力.
结论:
- 一个使用ESCM概念设计的专用TMJ假肢成功开发.
- 基于ESCM的方法通过增强运动范围和减少肌肉张力来优化TMJ假肢设计的潜力.
- 这种创新设计为改善关节障碍治疗提供了一个有希望的替代方案.
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