2017 Volume 55Annual Issue 4AM-Abstract Pages 258
Total hip arthroplasty (THA) is a surgical procedure that replaces a painful osteoarthritic hip joint with artificial components. Although the THA is an efficient treatment for osteoarthritic patients, there have been some problems to be resolved. Dislocation is one of the most common deuteropathy associated with the THA. Canine THA has been recently performed for dogs with the joint pain. The dislocation is a more serious problem for dogs than humans, because it is difficult to control the movement of dogs after the THA. We have newly proposed the artificial hip joint with a preventing structure from dislocation. In this study, the pull-out forces of the joint were calculated using a three dimensional finite element analysis. The relationships between the pull-out forces and the joint structures were obtained from the analysis. We gain insights into a principle to optimally design the artificial joint that does not easily occur the dislocation.
