This research was supported by a grant from the National Natural Science Foundation of China (No.30772195). We are very grateful to Dr. Alfred J. Tria from the Departments of Pathology and Laboratory Medicine and Surgery, Robert Wood Johnson Medical School, and the Orthopaedic Center of New Jersey, for his helpful comments and criticisms on an earlier version of this manuscript that have resulted in significant improvements. We thank Katharine O'Moore-Klopf, ELS, for editorial assistance with the manuscript. We also thank XU Hai-jun, ZHANG Li-ang, DING Hui, ZHU Zhong-lin and DANG Xiao for technical assistance.
Background We investigated the impact of eliminating the impingement between extensor mechanism and tibial insert on patellar tracking and patellar ligament tension in high knee flexion.Methods Six cadaveric specimens...