关节圆盘穿孔对关节的生物力学影响:一个3D有限元研究
Wentong Gao1,2,3, Jie Lu1,2,3, Xiang Gao1,2,3
1Stomatological Hospital of Chongqing Medical University, No. 426 Songshi North Road, Chongqing, China.
BMC oral health
|November 29, 2023
概括
在关节 (TMJ) 中的圆盘穿孔 (DP) 显著增加了内部关节应力,特别是在更大的穿孔或特定位置. 对于关节疾病 (TMD) 的早期干预至关重要.
科学领域:
- 生物力学 生物力学
- 生物医学工程 生物医学工程
- 牙科研究 牙科研究
背景情况:
- 盘穿孔 (DP) 是一种严重的关节疾病 (TMD),可以改变关节 (TMJ) 的内部应力.
- 了解DP的生物力学影响是阐明TMD病变的关键.
研究的目的:
- 研究不同DP位置和大小对关节的生物力学影响.
- 通过生物力学方法探索TMD的机械病原性.
主要方法:
- 基于CBCT成像,构建了TMJ的11个三维有限元素 (FE) 模型.
- 包括前盘位移和不同DP位置和尺寸的模型.
- 进行FE分析以评估应力分布.
主要成果:
- 前盘位移在两个TMJ显著增加了最大·米塞斯应力 (MVMS),在受影响的侧面更明显.
- 在后带或磁盘双结处的DP对MVMS产生了更大的影响.
- 穿孔尺寸的增加导致TMJ两者的MVMS更高.
结论:
- 单侧圆盘前部位位移会在两个TMJ中增加压力.
- 单边DP进一步加剧了TMJs内的压力分布.
- TMD是渐进的;早期干预至关重要,以防止病情恶化.
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