相关实验视频
Updated: Feb 6, 2026

10:10
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
44.0K
在横向逆向全肩关节整形手术中, subscapularis 的完整性和 posterosuperior 袖口撕裂的严重程度是否会影响外侧旋转期间的肩和关节稳定性? :媒介化与侧面化对比
Donghwan Lee1, Sungwook Jung2,3, Choongsoo S Shin1,4
1Department of Mechanical Engineering, Sogang University, Seoul, South Korea.
Bone & joint research
|February 4, 2026
概括
与 subscapularis 修复的侧面逆肩总关节整形术 (RTSA) 显著减少了旋转手套撕裂的患者的撞击和脱口. 这种方法提高了关节的稳定性和外部旋转扭矩的产生.
科学领域:
- 整形外科手术 整形外科手术
- 生物力学 生物力学
- 生物医学工程 生物医学工程
背景情况:
- 旋转手套撕裂严重程度对中介化与横向化的逆向全肩关节整形术 (RTSA) 的生物力学影响尚不清楚.
- 了解这些影响对于优化RTSA手术结果至关重要.
研究的目的:
- 为了比较媒体化和横向化的RTSA设计.
- 评估 subscapularis 完整性和 posterosuperior 袖口撕裂严重程度对生物力学结果的影响.
主要方法:
- 利用了12个人体体内数据集,用于介质化和横向化RTSA的肌肉骨肩部模型.
- 在经过修复和撕裂的下的条件下,在不同的袖口撕裂严重程度下进行了反向动态模拟.
- 在RTSA配置之间比较了与头皮痕相关的冲击应力,关节脱和肌力.
主要成果:
- 与媒介化的RTSA相比,在横向的RTSA中,骨下修复显著降低了撞击压力 (16.726.2%) 和关节脱 (27.558.9%).
- 侧面的RTSA与 subscapularis修复显示出后部体力量的显著增加,撕裂严重程度增加 (2.6%至918.5%),而不是媒体化的RTSA (4.7%至784.5%).
结论:
- 横向的RTSA结合 subscapularis 修复有效地减少了与肩膀痕相关的冲击,并增强了关节的稳定性.
- 这种外科手术策略通过增加后背体力,改善外围旋转扭矩的产生,用于后背部破裂的患者.
- 研究结果支持使用横向植入物和 subscapularis 修复,以减少并发症风险和改善RTSA的功能结果.
相关概念视频
Lateralization
1.1K
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
1.1K
Cranial Bones: Lateral View
4.5K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
4.5K
Muscles of the Shoulder
9.2K
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
9.2K
RNA Stability
35.7K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
35.7K
Role of Affect in Interpersonal Attraction
231
Affect plays a crucial role in shaping interpersonal evaluations and perceptions. Emotions influence how individuals judge and respond to others, often determining whether interactions are viewed positively or negatively. This effect can manifest directly through interactions with the person in question or indirectly via associations with unrelated emotional experiences.Direct Effects of Affect on AttractionAffect directly influences interpersonal attraction when a person’s behavior...
231
Structural Joints: Synovial Joints
7.0K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
7.0K

