动态与刚性腰部固定:一个多式对比的副脊柱肌肉形态,电肌学,和功能结果的多式比较
Merdan Orunoglu1, Ukbe Sirayder2, Oguzhan Yilmaz2
1Kayseri State Hospital, Kayseri, Turkey. merdanorunoglu@gmail.com.
概括
与刚性系统相比,动态腰部固定更好地保护副脊髓肌肉并减少退化. 这表明,运动保护植入物和早期康复是改善手术恢复和长期结果的关键.
科学领域:
- 脊柱手术的结果 脊柱手术的结果
- 生物机械工程 生物机械工程
- 神经肌肉康复疗法 神经肌肉康复疗法
背景情况:
- 腰部固定旨在稳定脊柱,但可能导致相邻段退行 (ASD) 并影响副脊柱肌肉.
- 动态和刚性固定系统之间的选择会影响长期的脊柱健康和患者的功能.
研究的目的:
- 为了比较动态与刚性腰部固定的结构,功能和神经肌肉影响.
- 评估动态稳定能否比刚性结构更好地保护副脊柱肌肉完整性和神经肌肉功能.
- 评估固定类型对相邻段变性 (ASD) 和患者残疾的影响.
主要方法:
- 一项涉及75名参与者的横截面研究,分为动态杆组 (DRG),刚性杆组 (RRG) 和健康对照组 (CG).
- 使用MRI检测副脊髓肌肉体积,用于ASD的放射学分级,以及使用表面电肌图 (sEMG) 的功能测试 (ODI,NHP,耐力).
主要成果:
- 动态固定 (DRG) 与刚性固定 (RRG) 相比,显示出明显更大的多体和勃起器脊柱体积,更好的核心耐力和更低的残疾分数 (ODI).
- sEMG在DRG中显示出更高的正常化收缩活动,在RRG中显示出更高的静止活动. 随着时间的推移,RRG表现出更严重的磁盘退化和肌肉缩.
结论:
- 与刚性系统相比,动态腰部固定与更好的副脊髓肌肉保存,改善的神经肌肉激活和更慢的退行性进展有关.
- 运动保护植入物在优化术后恢复方面具有临床重要性.
- 早期康复在腰部固定手术后实现最佳的长期功能结果方面发挥着至关重要的作用.
相关概念视频
00:55Skeletal Muscle Anatomy
Skeletal muscle is the most abundant type of muscle in the body. Tendons are the connective tissue that attaches skeletal muscle to bones. Skeletal muscles pull on tendons, which in turn pull on bones to carry out voluntary movements.
01:48Classification of Skeletal Muscle Fibers
Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
01:15Overview of Skeletal Muscle
Skeletal muscles are composed of a bundle of muscle fibers and are attached to bones through tendons. Each skeletal muscle fiber is a single muscle cell. The sarcolemma, the plasma membrane of a skeletal muscle cell, consists of a lipid bilayer and glycocalyx that supports muscle fibers. The sarcolemma extends into the muscle cells to form tubular structures called transverse or T-tubules. Each side of the T-tubules consists of a membrane-bound structure called the sarcoplasmic reticulum,...
01:25Overview of Muscle Tissues
The human body has three types of muscle tissue: skeletal, smooth, and cardiac. Each class has unique properties that enable them to perform specific functions. However, all muscle tissues share certain properties, including elasticity, contractility, and excitability.
Elasticity
Elasticity is the ability of muscles to stretch and return to their original shape. This property is partly due to elastic fibers — macromolecules that run through the muscles. These fibers are firm and resilient,...
Elasticity
Elasticity is the ability of muscles to stretch and return to their original shape. This property is partly due to elastic fibers — macromolecules that run through the muscles. These fibers are firm and resilient,...
01:12Gross Anatomy of Skeletal Muscles
The connective tissues play a significant role in arranging the muscle fibers into a hierarchical structure that forms a complete muscle. Consider a muscle like the bicep brachii, commonly called the bicep. This muscle comprises thousands of muscle fibers enclosed by a protective layer of connective tissue called the endomysium. The endomysium is primarily composed of reticular fibers, a type of thin collagen fiber. It allows the exchange of nutrients and waste products at the fiber level,...
01:25Fascicle Arrangement in Skeletal Muscles
Fascicles are bundles of muscle fibers in a skeletal muscle. Muscle fascicle arrangement is directly associated with the power and range of motion of various muscles. The configuration of these fascicles can vary, leading to different functional outcomes.
The four primary types of muscle based on fascicle arrangement are:
The four primary types of muscle based on fascicle arrangement are: