相关实验视频
Updated: Jul 24, 2025

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Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
Published on: November 23, 2019
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使用直立四维计算机断层扫描来动态评估关节和关节关节关节
Yuki Yoshida1, Noboru Matsumura1, Yoshitake Yamada2
1Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Journal of biomechanics
|July 5, 2023
概括
这项研究跟踪了使用4DCT的活跃肩部提升期间的关节 (SC) 和关节 (AC) 关节运动. 结果揭示了关节骨和肩膀的特定运动以及与骨关节炎相关的潜在冲击区域.
科学领域:
- 整形外科 整形外科 整形外科
- 生物力学 生物力学
- 医疗成像医学成像
背景情况:
- 在积极的肩部提升过程中跟踪关节 (SC) 和关节 (AC) 关节运动是复杂的.
- 了解这些动态关节变化对于诊断肩部疾病至关重要.
研究的目的:
- 在活跃的肩部提升过程中调查体内SC和AC关节动力学.
- 用直立四维计算机断层扫描 (4DCT) 来分析关节空间的连续变化.
主要方法:
- 12名健康的志愿者接受了双边直立4DCT扫描,在积极提升肩膀 (手向上运动) 期间进行扫描.
- 评估了SC和AC关节的旋转角度,关节距离,以及关节骨相对于胸部和肩膀的最接近点,从10°到140°的胸部部升高.
主要成果:
- 关节骨升高,收缩,并向后旋转;肩向上旋转,内部,并与关节骨相比向后旋转.
- 与10°相比,在≥30°-50°的高度上观察到SC和AC关节旋转角度的显著差异.
- 平均SC和AC关节距离分别为2.2±1.1毫米和1.6±0.9毫米,最接近的点位于前下关节骨上.
结论:
- 在积极的肩部提升过程中,SC和AC关节动力学发生了显著的变化.
- 阻塞可能发生在前下侧关节中侧关节,可能与骨关节炎有关.
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