关节表面卷入的量化在骨髓内固定的关节表面卷入
Julie Mekhail1, Rhiana Rivas1, Carolyn A Ardizzone1
1University of New Mexico School of Medicine, Albuquerque, NM.
Journal of hand surgery global online
|January 26, 2026
概括
内指甲 (IM) 手指甲固定用于骨骨折造成的关节软骨损伤不到10%,无论插入方法或指甲大小. 更小的3.0毫米钉子造成的损伤比3.5毫米钉子少.
科学领域:
- 整形外科手术 整形外科手术
- 生物力学 生物力学
- 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术手 ...
背景情况:
- 手骨折是常见的上肢损伤.
- 骨髓内 (IM) 手指甲固定越来越多地用于这些骨折.
- 在IM指甲插入过程中,关节软骨损伤的可能性令人担忧.
研究的目的:
- 量化从前向性和逆向性IM固定的关节软骨参与.
- 为了比较使用3.0毫米和3.5毫米IM手指甲的软骨损伤.
- 为了评估不同插入技术的骨骨折.
主要方法:
- 这项研究涉及来自八只手的32个尸体手指.
- 测试了四种IM指甲放置技术:逆向和前级.
- 关节软骨损伤使用临床照片和光镜的Image J软件来量化.
主要成果:
- 平均关节参与率始终低于10% (<10%).
- 平均软骨损伤在3.56%至9.73%之间.
- 3.5毫米的钉子比3.0毫米的钉子造成了更大的关节损伤.
结论:
- IM手指指甲固定用于骨骨折导致可接受的关节软骨损伤.
- 这项研究为不同的IM指甲技术和尺寸提供了对软骨参与的定量数据.
- 这些发现支持IM手指指甲固定对骨骨折的潜在益处.
相关概念视频
01:03Fixation and Sectioning
7.8K
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
7.8K
01:28Carbon-dioxide Fixation
707
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
707
01:26Antigens Involved in Adaptive Immunity
1.4K
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
1.4K
01:16Surface Tension and Surface Energy
3.2K
When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
3.2K
01:14Wood Surfacing
353
Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
353
01:21Cell-surface Signaling
54.2K
Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects.
54.2K