这个圆圈是完美的吗? 在非关节炎的肩膀中对最适合的圆圈进行放射验证
Ryan A Hoffman1, Ty Agaisse2, Brandon Portnoff1
1Division of Shoulder and Elbow Surgery, Department of Orthopaedic Surgery, Alpert Medical School, Brown University, Providence, RI, USA.
JSES international
|January 9, 2026
概括
最适合的圆圈 (BFC) 通常验证了肩膀关节整形手术的近端部解剖学. 然而,在某些情况下,原生圆 (NC) 和BFC之间的显著差异可能会导致植入物大小的错误.
科学领域:
- 整形外科手术 整形外科手术
- 生物机械分析分析
- 放射性成像 - 放射性成像
背景情况:
- 靠近腰部的解剖学重建是肩膀关节塑造植入物设计的关键.
- 最适合的圆圈 (BFC) 评估了近端部重建的质量.
- 验证BFC与本地解剖学对准确的植入物选择至关重要.
研究的目的:
- 为了验证最合适的圆圈 (BFC) 方法,使用平面放射图.
- 为了将BFC测量与非关节炎队列中的本地圆 (NC) 测量进行比较.
- 评估肩部解剖学中BFC和NC之间的差异的临床相关性.
主要方法:
- 200名非关节炎患者接受了标准的前后肩部X射线扫描.
- 测量了原生圆 (NC) 和最适合圆 (BFC) 的参数 (ROC,CO,AST).
- 统计分析,包括威尔科克森等级和和测试和皮尔森相关性,比较NC和BFC测量.
主要成果:
- 原生圆的曲率半径 (ROC) 比BFC的ROC大得多 (P < .001).
- 原生圆关节段厚度 (AST) 显著大于BFC AST (P < .001).
- 虽然差异往往很小,但在AST和CO中发现了异常值,在CO中存在显著的性别差异.
结论:
- 一般来说,BFC作为本地近端部关节解剖学的有效替代品.
- BFC和NC测量之间的临床相关差异可能会发生,特别是在AST.
- 由于某些情况下的BFC限制,假肢部头部植入物尺寸存在潜在的错误.
相关概念视频
Muscles of the Shoulder
8.8K
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...
8.8K
Mohr's Circle for Plane Strain
1.1K
Mohr's circle is a crucial graphical method used to analyze plane strain by plotting strain on a set of cartesian coordinates, where the abscissa is normal strain ∈ and the ordinate is shear strain γ. Similarly to Mohr’s circle for plane stress, two points X and Y are plotted. Their coordinates are (∈x, -γXY) and (∈Y, γXY), respectively.
Mohr's circle visually represents the strain states under various conditions, which is essential for...
Mohr's circle visually represents the strain states under various conditions, which is essential for...
1.1K
Mohr's Circle for Moments of Inertia
1.2K
Mohr's circle is a graphical method to determine an area's principal moments of inertia by plotting the moments and product of inertia on a rectangular coordinate system.
1.2K


