Department of Diagnostic and Interventional Radiology, Technische Universität München, Ismaninger Str.22, 81675, Munich, Germany.
Eur Radiol. 2013 Sep;23(9):2582-93. doi: 10.1007/s00330-013-2855-5. Epub 2013 May 22.
Traumatic instability of the elbow is a common problem among patients presenting to emergency departments. As recurrent instability is more common than previously thought and the knowledge of the most frequent underlying causes increases, treatment of elbow instability is becoming increasingly sophisticated. Therefore, it is mandatory for the radiologist to be familiar with the important osseous and soft-tissue stabilisers of the elbow joint and to know the pathomechanisms that lead to a spectrum of joint instability. This article discusses the relevant anatomy in elbow stability with respect to imaging and function, states the mechanisms leading to elbow dislocation and displays the types of traumatic instability of the elbow on radiography, computed tomography, and magnetic resonance imaging.
• Expert imaging helps the management of traumatic instability of the elbow • The lateral ulnar collateral ligament is the cornerstone for elbow stability • Soft-tissue disruption is important in posterolateral rotatory instability • Identification of small coronoid process fragments is essential for optimal surgical therapy.
肘部创伤性不稳定是急诊科患者常见的问题。由于复发性不稳定比以前认为的更为常见，并且对最常见的潜在病因的了解也在增加，因此肘部不稳定的治疗方法变得越来越复杂。因此，放射科医生必须熟悉肘关节的重要骨性和软组织稳定器，并了解导致一系列关节不稳定的病理机制。本文讨论了与影像学和功能相关的肘部稳定性的相关解剖结构，阐述了导致肘关节脱位的机制，并显示了放射摄影、计算机断层扫描和磁共振成像上的肘部创伤性不稳定的类型。
• 专家影像学有助于肘部创伤性不稳定的治疗管理
• 外侧尺侧副韧带是肘部稳定性的基石
• 软组织破坏在后外侧旋转不稳定中很重要
• 识别小的冠状突碎片对于最佳手术治疗至关重要。
