长方形的形短茎优异地保存了近接骨的矿物质密度,比形形短茎更好地保存了骨密度
Acta orthopaedica Belgica
|November 7, 2023
概括
在关节置换后,与形形茎相比,矩形形的Fitmore茎在关键区域显示出更好的骨矿物质密度. 这种设计提供了更好的旋转稳定性,并可能减少植入物周围的骨损失.
科学领域:
- 整形外科手术 整形外科手术
- 生物材料科学 生物材料科学
- 骨生理学 骨生理学
背景情况:
- 无水泥关节整形术旨在恢复功能,并最大限度地减少周围假肢骨损失.
- 茎的设计显著影响了植入物周围的旋转稳定性和骨重塑.
- 矩形凸的茎提供高的髓占用,可能提高稳定性.
研究的目的:
- 为了比较直角形短茎 (Fitmore) 和短形形形茎 (Tri-Lock BPS) 之间的围围假骨改造.
- 评估茎设计对特定Gruen区域骨矿物质密度 (BMD) 的影响.
- 分析茎前转错误和周围假肢骨变化之间的相关性.
主要方法:
- 对80名接受初级关节整形手术的患者进行前性研究.
- 双能X射线吸收计 (DXA) 用于在基线,6个月和24个月的7个格鲁恩区域测量BMD.
- 用皮尔森相关系数比较BMD变化和与干前倒转误差的相关性分析.
主要成果:
- 经过手术后,长方形形的小组在Gruen区域1和7显示出明显更好的BMD变化.
- 在矩形渐变的小组中,没有发现茎前转错误和骨质量变化之间的显著相关性.
- 形子组在6个月和24个月后在1区和7区的前倒转误差和BMD变化之间表现出显著的负相关性.
结论:
- 长方形的缩短茎显示出优越的围围假肢骨矿物质密度维护,特别是在近距离.
- 长方形形茎的更高的髓占用率可能有助于增强旋转稳定性和减少骨重塑.
- 这种茎的设计可能比形形茎在保护周围假肢骨健康方面具有优势.
相关概念视频
01:55Bone Structure
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
01:23Bone as Supporting Connective Tissue
Bone tissue forms the internal skeleton of vertebrate animals, providing structure to the body.
Bone Matrix
Bone, or osseous tissue, is a connective tissue that has a large amount of two different types of matrix material. The organic matrix is similar to the matrix material found in other connective tissues, including some amount of collagen and elastic fibers. This gives strength and flexibility to the tissue. The inorganic matrix consists of mineral salts— mostly calcium salts— that give the...
Bone Matrix
Bone, or osseous tissue, is a connective tissue that has a large amount of two different types of matrix material. The organic matrix is similar to the matrix material found in other connective tissues, including some amount of collagen and elastic fibers. This gives strength and flexibility to the tissue. The inorganic matrix consists of mineral salts— mostly calcium salts— that give the...
01:18Classification of Bones
The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
01:17Gross Anatomy of Bone
The two main features of a long bone are the diaphysis and the epiphysis.
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in adults, it...
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in adults, it...
01:27Compact Bone
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
01:09Spongy Bone
All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...