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相关概念视频

Muscles of the Shoulder01:23

Muscles of the Shoulder

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The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
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Nine muscles are involved in arm movements. Two of these, the pectoralis major and latissimus dorsi, originate from the axial skeleton and are called axial muscles. The other seven originate from the scapula and are called the scapular muscles.
The pectoralis major has two origins. Its clavicular head originates on the medial half of the clavicle. In contrast, the sternocostal head originates on the costal cartilages of ribs 1-6, the sternum, and the aponeurosis of the external oblique of the...
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A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
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In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
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相关实验视频

Updated: Jun 3, 2025

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
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骨和胸部形态是否会影响后射线α角?

Taha Kizilkurt1, Muhammed Furkan Darilmaz1, Furkan Okatar1

  • 1Department of Orthopedics and Traumatology, Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey.

Journal of clinical medicine
|January 11, 2025
PubMed
概括
此摘要是机器生成的。

胸腔形态显著影响拉达喷气手术后的α角. 较高的前后横胸直径比率 (AP/T) 与α角的增加相关,可能使手术目标复杂化.

关键词:
这是一架Latarjet飞机.一个阿尔法角的角度.肩膀的不稳定性 肩膀的不稳定性胸部形态学 胸部形态学

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相关实验视频

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科学领域:

  • 整形外科手术 整形外科手术
  • 放射学 放射学是一门学科.
  • 生物机械分析分析

背景情况:

  • 拉达喷气手术是一种常见的手术治疗,用于复发的前肩部不稳定.
  • 优化螺丝放置,反映在α角,对于成功的结果至关重要.
  • 患者特异性胸腔形态对手术参数 (如α角) 的影响仍未得到充分探索.

研究的目的:

  • 为了研究胸口直径和Latarjet手术后的α角之间的关系.
  • 识别与α角相关或预测的胸腔形态指标.
  • 增强对影响拉达喷气手术结果的因素的理解.

主要方法:

  • 对74名接受Latarjet手术的患者进行了回顾性分析,这些患者因肩膀前部复发性不稳定性而受到Latarjet手术的治疗.
  • 对术后胸部CT扫描进行评估,以测量α角,胸口直径 (前后/横比 - AP/T),头骨倾斜度和状腺版本.
  • 统计相关性分析和接收器运行特征 (ROC) 曲线分析以评估预测值.

主要成果:

  • 在AP/T比率和α角 (r = 0.407,p < 0.001) 之间发现了显著的正相关性.
  • 骨倾斜,状腺版本和胸腔骨角也与α角有显著的相关性.
  • 1.2545的AP/T比率值预测了较差的结果 (AUC = 0.660,p = 0.018),而α角>15度与较差的结果有关.

结论:

  • 胸腔形态,特别是AP/T比率,直接影响在Latarjet手术中获得的α角.
  • 更高的AP/T比率与更大的α角相关,这对最佳的螺丝放置构成潜在的挑战.
  • 胸腔形态的手术前评估可能有助于预测和管理实现目标α角的挑战.