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相关概念视频

Ankle Joint01:10

Ankle Joint

2.8K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
2.8K

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相关实验视频

Updated: Jan 14, 2026

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Published on: September 18, 2020

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通过姿势控制测试评估旋转脚不稳定性:冠状不稳定性优于传统成像.

Nan Mei1,2,3, Zhende Jiang1, Zhuan Zhong1

  • 1Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, China.

Journal of foot and ankle research
|October 21, 2025
PubMed
概括
此摘要是机器生成的。

旋转脚不稳定 (RAI) 可以通过测量"冠状不稳定"的非侵入性姿势控制评估来诊断. 这种方法显示出高精度,可能超过慢性脚不稳定性 (CAI) 的传统成像.

关键词:
慢性脚不稳定 脚不稳定德尔托骨带带的带.诊断成像诊断成像的使用.姿势控制 姿势控制旋转脚不稳定性的脚.

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Experimental Methods to Study Human Postural Control

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相关实验视频

Last Updated: Jan 14, 2026

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07:52

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科学领域:

  • 整形外科和运动医学
  • 生物力学 生物力学
  • 诊断成像 诊断成像 诊断成像

背景情况:

  • 带带 (DL) 损伤越来越多地与慢性脚不稳定性 (CAI) 和旋转脚不稳定性 (RAI) 相关.
  • 目前用于评估RAI的方法缺乏对带损伤和旋转不稳定的洞察力.
  • 需要在CAI患者中改善RAI的诊断工具.

研究的目的:

  • 为了评估在RAI中特有的旋转不稳定性.
  • 确定最能代表 RAI 的姿势控制参数.
  • 使用姿势控制建立RAI的定量诊断值.

主要方法:

  • 32名患有CAI的患者接受了姿势控制评估 (压力分析中心和感官组织测试).
  • 用X光和MRI测量骨倾斜角度和中间清晰空间.
  • 关节镜检查结果证实了诊断;接收器操作特征 (ROC) 曲线分析了诊断实用性.

主要成果:

  • RAI显示出冠状平面与斜面平面摆动幅度 (冠状不稳定) 的比率较高.
  • 冠状元的不稳定性显示出高的诊断性能 (AUC=0.95),超过成像技术 (AUC=0.567-0.844).
  • 最佳切断值 (0.81) 为RAI检测提供了83.33%的灵敏度和100%的特异性.

结论:

  • 冠状元不稳定性的非侵入性姿势控制评估是高度敏感和特定的,用于诊断RAI.
  • 这种方法为RAI识别提供了有价值的临床工具.
  • 姿势控制评估可以在诊断RAI时补充或超过传统的成像.