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生物机械比较1和2道部悬浮塑料构造用于基础指关节炎的结构
Daniel J Lorenzana1, Bijan Abar2, Eliseo V DiPrinzio1
1Duke University Medical Center, Durham, NC, USA.
概括
与单个SBS相比,交叉双按悬浮整形 (SBS) 结构为指CMC骨关节炎提供了优越的立即术后稳定性. 这种交叉配置,而不仅仅是数,增强了稳定性并保持了关节高度.
科学领域:
- 整形外科手术 整形外科手术
- 生物机械工程 生物机械工程
- 手部手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手 ...
背景情况:
- 带有扣悬浮整形 (SBS) 的梯形切除术是一种标准的手术治疗指手指甲骨关节炎的手术.
- 了解影响结构稳定性的因素对于优化手术结果至关重要.
研究的目的:
- 为了比较不同骨道配置的生物力学稳定性和合数在SBS中用于指CMC骨关节炎.
- 评估结构设计对在生理负荷下维护特拉皮的高度的影响.
主要方法:
- 十二个匹配的尸体标本接受了梯形切除术,并随机分配到单个SBS或交叉双SBS结构中.
- 机械测试评估了轴承负载下的结构刚性.
- 在模拟的捏握条件下测量了Trapezial空间.
主要成果:
- 与单个SBS相比,交叉双SBS结构显示出明显更高的刚性 (19.9比15.5N/mm).
- 交叉结构在轻度 (82%对71%) 和重度 (73%对46%) 下更好地保持了梯形高度.
- 一种新的交叉接技术也显示出改善了梯形高度的保存.
结论:
- 交叉双SBS构造提供了优越的立即轴硬度和抓稳定性,而不是单个SBS.
- 交叉配置似乎比数更为关键,以提高术后稳定性.
- 这些发现表明,优化骨道策略可以改善CMC骨关节炎手术的结果.
相关概念视频
Introduction to Joints
The adult human body usually has 206 bones, and except for the hyoid bone in the neck, each bone is connected to at least one other bone. Joints are the location where bones come together. Many joints allow for movement between the bones. At these joints, the articulating surfaces of the adjacent bones can move smoothly against each other. However, the bones of other joints may be joined by connective tissue or cartilage. These joints are designed for stability and provide little or no movement.
Functional 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...
Structural Joints: Cartilaginous Joints
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary or...
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary or...
Structural 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...

