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肩膀的多方向不稳定性:一个系统的审查与一个新的分类
Victor Housset1, Sean Wei Loong Ho2, Alexandre Lädermann3,4,5
1Clinique de l'épaule, Clinique Maussins-Nollet, Paris, France.
EFORT open reviews
|April 5, 2024
概括
肩膀的多方向不稳定性 (MDI) 缺乏共识定义,阻碍了诊断和治疗. 本综述提出了一个新的分类系统,以更好地根据创伤和过度宽松性对MDI亚型进行分类.
科学领域:
- 整形外科 整形外科 整形外科
- 运动医学 运动医学
- 肩部外科手术 肩部外科手术
背景情况:
- 肩部的多方向不稳定性 (MDI) 包含各种不稳定性,由于缺乏基于证据的共识,导致诊断和治疗方面的挑战.
- 目前对MDI的定义和诊断标准在研究中表现出显著的异质性.
研究的目的:
- 解决在定义肩部多方向不稳定性 (MDI) 中缺乏共识和异质性的问题.
- 为MDI亚型提出一种新的分类系统,以提高诊断准确性和临床理解.
主要方法:
- 使用PubMed Medline和Embase数据库进行了系统的文献搜索.
- 关键词包括"腺关节"",肩膀"",多向"和"不稳定".
- 分析了68个符合特定纳入标准的出版物.
主要成果:
- 在MDI定义中观察到很高的异质性,包括考虑创伤 (46%),排除手臂/骨头损伤 (37%) 和不稳定的方向数量 (全球与两个方向) 的变化.
- 只有22%的研究将MDI定义为全球不稳定,而41%的研究认为MDI是两个方向的不稳定,包括下层方向.
- 提出了一种新的AB分类,将创伤病因和超宽松性纳入MDI的细分.
结论:
- 多方向不稳定性 (MDI) 具有两个或两个以上方向的肩关节症状不稳定性的特征.
- 考虑易受创伤和过度松性的综合分类系统对于精确评估MDI亚型至关重要.
相关概念视频
01:21Rigid Body Equilibrium Problems - II
A rigid body is in static equilibrium when the net force and the net torque acting on the system are equal to zero.
Consider two children sitting on a seesaw, which has negligible mass. The first child has a mass (m1) of 26 kg and sits at point A, which is 1.6 meters (r1) from the pivot point B; the second child has a mass (m2) of 32 kg and sits at point C. How far from the pivot point B should the second child sit (r2) to balance the seesaw?
Consider two children sitting on a seesaw, which has negligible mass. The first child has a mass (m1) of 26 kg and sits at point A, which is 1.6 meters (r1) from the pivot point B; the second child has a mass (m2) of 32 kg and sits at point C. How far from the pivot point B should the second child sit (r2) to balance the seesaw?
01:09Functional Classification of Joints
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
01:20Structural Classification of Joints
Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...
A fibrous joint is where the adjacent bones are united by fibrous connective...
01:14Stability of structures
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
01:26Classification of Systems-I
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
01:24Pole and System Stability
The transfer function is a fundamental concept representing the ratio of two polynomials. The numerator and denominator encapsulate the system's dynamics. The zeros and poles of this transfer function are critical in determining the system's behavior and stability.
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's response.
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's response.