Cyteval C
Service d'imagerie médicale, hôpital Lapeyronie, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France.
Diagn Interv Imaging. 2016 Jul-Aug;97(7-8):809-21. doi: 10.1016/j.diii.2016.02.015.
Various types of knee arthroplasty implants are available depending on the number of knee compartments to be replaced and ligament stability. Unlike unicompartmental arthroplasty, the aim of total knee replacement is to maintain normal knee alignment. EOS X-ray imaging in the coronal and sagittal planes is the best modality for measuring the reference axes of the knee, but may by complemented by CT scans in the transverse plane. In addition to implant-related complications such as loosening and polyethylene wear, complications of the knee extensor mechanism are sometimes observed. Conventional radiography remains the first-line diagnostic modality in the event of post-knee replacement pain or instability. Ultrasound and CT imaging may also be helpful to make diagnosis.
根据需要置换的膝关节间室数量和韧带稳定性，有多种类型的膝关节置换植入物可供选择。与单髁置换不同，全膝关节置换的目的是保持膝关节的正常对线。EOS X线在冠状面和矢状面的成像对于测量膝关节的参考轴是最佳方式，但也可辅以横断面的CT扫描。除了诸如松动和聚乙烯磨损等与植入物相关的并发症外，有时还会观察到膝关节伸肌机制的并发症。在膝关节置换术后出现疼痛或不稳定的情况下，传统放射摄影仍然是一线诊断方式。超声和CT成像也可能有助于诊断。
