Sectra AB, Linköping, Sweden.
University of Göteborg, Göteborg, Sweden.
Acta Orthop. 2023 Jul 20;94:373-378. doi: 10.2340/17453674.2023.15337.
Early implant migration is an indicator of the long-term survival/failure of implants. CT-based radio-stereometric analysis (CT-RSA) is a precise method for measuring and visualizing implant migration in vivo using image processing of CT scans. This makes the method widely applicable to orthopedic researcher. Since its development in the early 2000s, CT-RSA has benefited from breakthroughs in CT and computing technology. These advancements have allowed for the acquisition of images with higher resolution at a much lower radiation dose. As a result, the measurement precision of CT-RSA is now comparable to that of the current gold standard technology while still compatible with most ethical considerations regarding radiation exposure. In this review we present bests practices for the successful execution of CT-RSA research projects. These practices are based on experience from projects on the hip, knee, shoulder, lower back, cervical spine, foot, pelvis, and wrist.
早期种植体迁移是种植体长期存活/失败的一个指标。基于 CT 的放射立体分析（CT-RSA）是一种通过对 CT 扫描进行图像处理来测量和可视化体内种植体迁移的精确方法。这使得该方法广泛适用于骨科研究人员。自 21 世纪初开发以来，CT-RSA 受益于 CT 和计算技术的突破。这些进步允许以更低的辐射剂量获得更高分辨率的图像。因此，CT-RSA 的测量精度现在可与当前的黄金标准技术相媲美，同时仍符合大多数关于辐射暴露的伦理考虑。在这篇综述中，我们介绍了成功执行 CT-RSA 研究项目的最佳实践。这些实践基于在髋关节、膝关节、肩关节、下背部、颈椎、足部、骨盆和腕关节的项目经验。
