Biomechanical modeling and application of musculoskeletal system

Yu-bo Fan, Lizhen Wang, Xiaoyu Liu, Jie Yao, Chao Wang, Wenxin Niu
2014 Journal of Orthopaedic Translation  
The mean (sd) micro motion over the first two years of nineteen femoral Articular Surface Replacement (ASR) components was a lateral movement of 0.107 (0.513) mm, distal migration of 0.055 (0.204) mm, and anterior movement of 0.150 (0.413) mm. The backward tilt around the x axis was -0.08 (1.088), there was 0.165 (0.924) internal rotation and 0.238 (0.420) varus tilt. The baseline to 2 year varus tilt was statistically significant from zero movement, but on a group level no significant movement
more » ... ignificant movement was present from 1 year onwards. Conclusion. We conclude that the ASR femoral implant achieves initial stability, and that early migration is not the mode of failure for the ASR implant.
doi:10.1016/j.jot.2014.07.137 fatcat:fozr2yfcrzdc5idjr4joqn7sou