Jarraya Mohamed, Diaz Luis E, Arndt William F, Roemer Frank W, Guermazi Ali
Department of Radiology, Mercy Catholic Medical Center, 1500 Lansdowne Avenue, Darby, 19023, PA, USA.
Department of Radiology, Boston University School of Medicine, Boston, MA, USA.
Insights Imaging. 2017 Feb;8(1):49-57. doi: 10.1007/s13244-016-0535-0. Epub 2016 Nov 30.
Patellar fractures account for approximately 1% of all skeletal fractures and may result from direct, indirect, or combined trauma. Because of the importance of patellar integrity for knee extension and the risk of associated injury to the extensor mechanism, accurate reporting and description of fracture type is paramount for appropriate management. This pictorial essay aims to review the normal anatomy of the patella, the mechanisms of injury and different types of patellar fractures, with a brief introduction to therapeutic management. Teaching Points • Patellar fractures are classified according to their morphology and degree of displacement.• Direct trauma results in stellate fractures.• Indirect trauma results in transverse fractures.• Displacement should raise suspicion for retinacular injury.
髌骨骨折约占所有骨骼骨折的1%，可能由直接、间接或复合创伤引起。由于髌骨完整性对膝关节伸展的重要性以及伸肌机制相关损伤的风险，准确报告和描述骨折类型对于恰当的治疗至关重要。本文旨在回顾髌骨的正常解剖结构、损伤机制及不同类型的髌骨骨折，并简要介绍治疗方法。教学要点 • 髌骨骨折根据其形态和移位程度进行分类。• 直接创伤导致星状骨折。• 间接创伤导致横行骨折。• 移位应引起对支持带损伤的怀疑。
