title: Biomechanical assessment of a patient-specific knee implant design using finite element method.
abstract: Rheumatoid arthritis is the leading cause of disability in young adults. Total knee arthroplasty has been successfully used to restore the joint function. Due to small bone size, osteoporosis, and severe soft tissue disease, standard knee implant sometimes cannot be directly applied clinically and patient-specific designs may be a more rational choice. The purpose of this study was to evaluate the biomechanical behavior of a patient-specific knee implant. A three-dimensional finite element of total knee arthroplasty was developed. The mechanical strength and the wear damage of the articular surfaces were analyzed. The results show that there exist high risks of component fracture and wear damage; the proposed implant design should be abandoned. The presurgery analysis is helpful in avoiding the potential failure.
authors.affiliation: College of Engineering, Peking University, Beijing 100871, China.
authors.forename: Qiguo
authors.identifier: 0000-0002-9209-730X
authors.initials: Q
authors.lastname: Rong
authors.affiliation: Baimtec Material Co., LTD., Beijing 100095, China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Bai
authors.affiliation: Baimtec Material Co., LTD., Beijing 100095, China.
authors.forename: Yongling
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Peking University People's Hospital, Beijing 100044, China.
authors.forename: Jianhao
authors.initials: J
authors.lastname: Lin
mesh_terms: D000328:Adult; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001696:Biomechanical Phenomena; D005260:Female; D020342:Finite Element Analysis; D006801:Humans; D007719:Knee Joint / Q000473:pathology / Q000601:surgery; D007720:Knee Prosthesis; D008954:Models, Biological; D011474:Prosthesis Design; D013314:Stress, Mechanical
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