Few studies have been conducted to investigate kinematics and kinetics of the patellofemoral joint under physiological muscle forces and ankle joint loads. In this study, a preliminary design of a customised total knee implant was proposed and created. To compare the influences of different patella treatment scenarios, a dynamic knee simulation model was created with patient-specific muscle forces and ankle joint loads that are calculated from an OpenSim musculoskeletal model. The goal is to improve patellar implant-bone connection and restore patellofemoral joint mobility. Identical dynamic boundary conditions were applied on an unresurfaced patella and three different dome-shaped patellar implants. It was found that the unresurfaced patella and patellar implants resulted in different motions of patellar internal rotation and medial tilt. The size of the dome-shaped patellar implant affected the motion and loading of the patellofemoral joint. When the exposed patella bone was not fully covered by the patellar implant, the patella bone then contacted the femoral component during knee flexion. This would most likely lead to anterior knee pain and subsequent revision.

很少有研究研究在生理肌肉力和踝关节负荷下髌股关节的运动学和动力学。在这项研究中，提出并创建了定制全膝关节植入物的初步设计。为了比较不同髌骨治疗方案的影响，我们创建了一个动态膝关节模拟模型，其中包含从 OpenSim 肌肉骨骼模型计算的患者特定肌肉力和踝关节负荷。目标是改善髌骨植入物与骨的连接并恢复髌股关节活动度。相同的动态边界条件应用于未修整的髌骨和三个不同的圆顶形髌骨植入物。结果发现，未修复的髌骨和髌骨植入物导致髌骨内旋和内侧倾斜的不同运动。圆顶形髌骨植入物的大小影响髌股关节的运动和负荷。当暴露的髌骨没有被髌骨植入物完全覆盖时，髌骨在膝关节屈曲过程中会接触股骨假体。这很可能导致前膝关节疼痛和随后的翻修。