Department of Biomechanical Engineering, University of Twente, Enschede, the Netherlands.
Department of Radiology and Nuclear Medicine, Radboud University Medical Centre, Nijmegen, the Netherlands.
Med Eng Phys. 2020 Apr;78:29-38. doi: 10.1016/j.medengphy.2020.01.012. Epub 2020 Feb 27.
Patellofemoral instability is a motion related disease, featured as the patella dislocating from the trochlear groove. Four dimensional computed tomography (4DCT) enables full assessment of the patellofemoral movement. Nevertheless, the quantitative measurements of patellofemoral instability are still under research and currently of limited practical use. The aim of this study is to develop a robust and semi-automatic workflow to quantitatively describe the patellofemoral movement in a patient group of eight suffering from patellofemoral instability. The initial results show agreement with manual observations of the tibial tubercle - trochlear groove (TT-TG) distance in routine practice, and the possibility to evaluate both TT-TG distance and patellar centre - trochlear groove (PC-TG) distance dynamically during active flexion-extension-flexion movement of the knee.
髌股关节不稳定是一种与运动相关的疾病，其特征为髌骨从滑车沟中脱位。四维计算机断层扫描（4DCT）可全面评估髌股运动。然而，髌股关节不稳定的定量测量仍在研究中，目前实际应用有限。本研究旨在开发一种强大且半自动的工作流程，以定量描述 8 例髌股关节不稳定患者的髌股运动。初步结果与常规实践中胫骨结节-滑车沟（TT-TG）距离的手动观察结果一致，并且有可能在膝关节主动屈伸-屈伸运动期间动态评估 TT-TG 距离和髌骨中心-滑车沟（PC-TG）距离。
