Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (36): 5850-5857.doi: 10.3969/j.issn.2095-4344.2914

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Biomechanical study of the effect of femoral anatomy on knee arthroplasty

Li Chao, Cheng Jingbo, Feng Mingli   

  1. Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
  • Received:2020-03-01 Revised:2020-03-10 Accepted:2020-04-23 Online:2020-12-28 Published:2020-10-27
  • Contact: Feng Mingli, MD, Chief physician, Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
  • About author:Li Chao, Master candidate, Physician, Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing 100053, China

Abstract:

BACKGROUND: Joint arthroplasty has become one of the main methods in the treatment of severe knee disease. The effect of femur shape on joint arthroplasty has been paid more and more attention. The influence of femur shape on biomechanics after joint arthroplasty was analyzed by finite element method.

OBJECTIVE: To summarize the anatomical characteristics of femur and the research progress of knee arthroplasty, and to analyze the influence of different femur shapes on the biomechanics of knee arthroplasty by finite element method.  

METHODS: The key words were “femur shape, femur anatomical shape, femur side arch angle, knee

osteoarthritis, knee arthroplasty, total knee arthroplasty, unicompartmental knee arthroplasty, biomechanics, finite element analysis”. A computer was used to retrieve Wanfang, VIP, CNKI, PubMed, Elsevier and Web of Science. Through the preliminary screening of reading titles and abstracts, the literatures with low relevance to the theme were excluded, and 102 literatures were finally included for the result analysis.

RESULTS AND CONCLUSION: (1) The femur shape has great difference in different race and sex. (2) The different shape of femur has influence on the insertion point of femoral intramedullary positioning rod, osteotomy angle of femoral valgus, and osteotomy angle of tibia. (3) Compared with the early biomechanical analysis, the finite element analysis method is practical and flexible in vitro experiment, with strong operability and has become the first choice of orthopedic biomechanics research. The finite element analysis method has a unique advantage in the influence of femur shape on knee arthroplasty, which has been paid more and more attention.

Key words: bone, femur, knee, knee joint, osteoarthritis, joint arthroplasty, biomechanics, finite element analysis

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