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  • Title: [Finite element analysis of changes in femoral stresses after elite total hip arthroplasty].
    Author: He RX, Luo YM, Yan SG, Wu HB.
    Journal: Zhonghua Yi Xue Za Zhi; 2004 Sep 17; 84(18):1549-53. PubMed ID: 15500718.
    Abstract:
    OBJECTIVE: To determine the variation in femoral stress after insertion of Elite cemented femoral prosthesis. METHODS: Three-dimentional finite element models of the normal human femur and Elite femoral prosthesis were developed through CT scan. With the application of hip joint loading, quantitatively measure stress changes of an intact femur with corresponding femur inserted with Elite implants were measured. RESULTS: Compared with intact femur, insertion of Elite implants into the femoral canal decreased the proximal femoral stresses level, especially in calcar femoral, femur wall and tuberositas. However, the stress in the prosthesis distal end. CONCLUSION: Insertion of Elite implants induced significant stress shielding in the proximal femur, especially at calcar femoral, femur wall and tuberositas. However, stress concentrates in the prosthesis distal end.
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