在无茎肩关节整形术后恢复关节几何形状
Lokesh Chawla1, Kapil Kumar1, Scott Barker1
1Woodend Hospital, Aberdeen, UK.
Shoulder & elbow
|June 16, 2023
概括
这项研究表明,使用Affinis Short假肢的无茎全肩关节整形手术有效地恢复了肩部解剖. 放射分析证实,在大多数情况下,解剖学恢复非常出色,支持其在肩部置换手术中的使用.
科学领域:
- 整形外科手术 整形外科手术
- 生物医学工程 生物医学工程
- 放射学 放射学是一门学科.
背景情况:
- 无茎肩关节整形越来越受欢迎,因为它有可能恢复本地解剖学.
- 很少有研究在无茎全肩关节整形术后对解剖修复进行了定量评估.
- 评估解剖修复对于了解植入物性能和患者结果至关重要.
研究的目的:
- 评估使用Mathys Affinis全肩关节整形术 (TSA) 实现的解剖修复短假体.
- 评估关键的放射性参数,包括旋转中心 (COR),手臂头高度 (HHH),手臂头直径 (HHD),手臂高度 (HH) 和部轴角 (NSA).
主要方法:
- 用阿菲尼斯初级骨关节炎的短假肢进行TSA的患者的回顾性分析 (2010-2016).
- 使用PACS软件分析了手术前和后的放射图,以测量解剖学参数.
- 为了确保测量可靠性,评估了观察者内部和观察者间的变异性.
主要成果:
- 优秀的COR恢复 (在85%的病例中偏差小于3mm).
- 在指定公差范围内恢复HHH (97%) 和HH (91.2%) 的高精度.
- 在部轴角 (NSA) 中发现了显著的变化,其中55%的部轴角偏差超过8度,42.6%的部轴角在术后小于130度.
结论:
- 无茎TSA与阿菲尼斯短假肢证明了基于大多数X光学参数的优秀解剖修复.
- 在NSA的变化可能归因于手术技术的变化,如部切割角度.
- 假肢显示出在TSA程序中恢复本地肩膀几何学的希望.
相关概念视频
Muscles of the Shoulder
4.0K
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...
4.0K
Development of the Limb Synovial Joints
1.4K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.4K
Bones of the Upper Limb: Humerus
3.4K
The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
3.4K
Eccentric Axial Loading in a Plane of Symmetry
236
Eccentric axial loading occurs when an axial load is applied away from the centroidal axis of a structural member. This scenario is common in engineering, where structural elements may not be directly aligned due to various design or functional requirements.
236


