髋关节中空多孔假体置换术后生物力学特性的对比研究
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摘要
目的:本课题利用有限元分析的方法对髋关节中空多孔假体植入后的生物力学传导特性进行研究,为改进中空多孔人工关节假体的设计提供依据。
方法:应用制图设备和软件分别建立股骨模型和假体模型;应用有限元分析软件,模拟单腿负重的情形对假体置换后不同状态下的应力分布进行比较。比较如下:1,假体开孔前后应力分布比较;2,开孔侧假体中空部分与周围骨质连接前后应力分布比较;3,与短柄假体应力分布的比较。
使用Microsoft Excel 2000软件包进行分析处理。
结果:1,开孔后张力侧最大压应力有所减小,开孔部位的应力水平变化不大。2,与周围骨质形成连接前后,开孔局部受力骨桥形成之后孔缘局部应力增加不明显。骨桥形成前后张力侧受力改变,变化不明显。3,短柄假体受力模式仍为远端应力集中;张力侧应力减小,开孔部位应力明显增加。不同开孔设计中,下孔受力较上孔大,受力方向基本一致。
结论:1,开孔设计降低张力侧最大压应力,改善应力集中现象。2,形成骨桥后,孔缘应力增加不明显,可根据需要扩大孔径。3,放大开孔部位的力学作用,可缩短假体柄长度。
Objective: After implantation the biomechanical environment around prosthesis will change. Detect the mechanic conduction property of CCB; make a comparative study concerning different conditions. Provide data to better the design of CCB.
Methods: Establish models of femur and CCB; imitate the condition when standing on one foot and compare the biomechanical environment in different conditions. Set in three group: 1, prosthesis without hole on the side wall compare with CCB; 2, compare the condition before and after the connection between the hollow part of prosthesis and the surrounding bone tissue; 3, shortening the length of the prosthesis, detect the mechanics property and make a comparation.Deal with the data using Microsoft Excel 2000.
Results: 1. Making holes on the lateral side of the prosthesis lower the maxim stress, however, the stress around the hole does not change obviously.
2. After connection between the hollow part of the prosthesis, the stress around the holes does not increase, meanwhile, the stress on the lateral side does not change obviously.
3. After shortening the length of the prosthesis, the mechanic conduction style remains the same; however, the stress near the hole increase so much. The stress around the lower hole is higher, and in all these conditions the direction of force around the holes is basically the same.
Conclusions: 1. Hole on the lateral side can lower the maxim stress on the lateral side.
2. After connection between the hollow part of the prosthesis, the stress around the holes does not increase obviously, always at a low level; so enlarging the diameter of the hole is available.
3. Shortening the length of the prosthesis will enlarge the biomechanical effect of the design.
方法:应用制图设备和软件分别建立股骨模型和假体模型;应用有限元分析软件,模拟单腿负重的情形对假体置换后不同状态下的应力分布进行比较。比较如下:1,假体开孔前后应力分布比较;2,开孔侧假体中空部分与周围骨质连接前后应力分布比较;3,与短柄假体应力分布的比较。
使用Microsoft Excel 2000软件包进行分析处理。
结果:1,开孔后张力侧最大压应力有所减小,开孔部位的应力水平变化不大。2,与周围骨质形成连接前后,开孔局部受力骨桥形成之后孔缘局部应力增加不明显。骨桥形成前后张力侧受力改变,变化不明显。3,短柄假体受力模式仍为远端应力集中;张力侧应力减小,开孔部位应力明显增加。不同开孔设计中,下孔受力较上孔大,受力方向基本一致。
结论:1,开孔设计降低张力侧最大压应力,改善应力集中现象。2,形成骨桥后,孔缘应力增加不明显,可根据需要扩大孔径。3,放大开孔部位的力学作用,可缩短假体柄长度。
Objective: After implantation the biomechanical environment around prosthesis will change. Detect the mechanic conduction property of CCB; make a comparative study concerning different conditions. Provide data to better the design of CCB.
Methods: Establish models of femur and CCB; imitate the condition when standing on one foot and compare the biomechanical environment in different conditions. Set in three group: 1, prosthesis without hole on the side wall compare with CCB; 2, compare the condition before and after the connection between the hollow part of prosthesis and the surrounding bone tissue; 3, shortening the length of the prosthesis, detect the mechanics property and make a comparation.Deal with the data using Microsoft Excel 2000.
Results: 1. Making holes on the lateral side of the prosthesis lower the maxim stress, however, the stress around the hole does not change obviously.
2. After connection between the hollow part of the prosthesis, the stress around the holes does not increase, meanwhile, the stress on the lateral side does not change obviously.
3. After shortening the length of the prosthesis, the mechanic conduction style remains the same; however, the stress near the hole increase so much. The stress around the lower hole is higher, and in all these conditions the direction of force around the holes is basically the same.
Conclusions: 1. Hole on the lateral side can lower the maxim stress on the lateral side.
2. After connection between the hollow part of the prosthesis, the stress around the holes does not increase obviously, always at a low level; so enlarging the diameter of the hole is available.
3. Shortening the length of the prosthesis will enlarge the biomechanical effect of the design.
引文
[1]蔡谞.生物复合型中空人工关节假体.世界医疗器械[J],2004,10(2):12-15
[2]Mitsuo Niinomi.Recent research and development in titanium alloys for biomedical applications and healthcare goods[J].Sci Technol Advan Mater,2003,4:445.454
[3]罗承刚,龚宪生.近端股骨的非均匀及各向异性有限元模型[J],重庆大学学报,2004,27(2):20.23
[4]David V.Huron著,武建华 缩编.Fundamentals of Finite Element Analysis[M],重庆大学出版社。2007年3月第1版,ISBN 978-7-5624-3856-4
[5]毛宾尧.髋关节外科学[M].第1版.北京:人民卫生出版社。1998.36(Mao Binyao.The surgery of the hip joint.Beijing:People's Health Press,1998,36(in Chinese))
[6]戴尅戎,王以进译:骨骼系统的生物力学基础[M],学林出版社。1985:17
[7]王天英,江福川,王西十.人体髋关节接触力计算分析一例[J].力学与实践.2005年第27卷第2期.:67-69
[8]Van Rietbergen B,Huiskes R.Load transfer and stress shielding of the hydroxyapatite-ABG hip:a study of stem length and proximal fixation[J].J Arthroplasty,2001,16:55-63
[9]Albrektsson T,Jacobsson M,Kalebo P.The harvest chamber-a newly developed implant for analysis of bone remodelling in situ.In:Ducheyne P,Vander Perre G,Aubert AE(Eds.).Biomaterials and Biomechanics.Amsterdam:Elsevier Science Publishers B.V.,1984.283-288
[10]Bostrom MPG,Aspenberg P,Jeppsson C,et al.Enhancement of bone formation in the setting of repeated tissue deformation.Clin Orthop,1998,350:221-228.
[11]Termaat,Denboer,Bakker,et al.Bone Morphogenetic Proteins.J Bone Joint Surg(Am),2005,87:1367-1378
[12]唐六丁,赵为民,徐杨,股骨假体的界面生物力学仿真分析.河南科技大学学报,2004,21(4)255-257
[13]廖湘凌,李声伟,田卫东,中空多孔钛种植体复合牛骨形成蛋白的实验研究.中国口腔种植学杂志,2000,5(2)73-76
[14]Jackson M,Learmonth ID.The treatment of nonunion after intracapsular fractureof the proximal femur.Clin Orthop,2002,(399):119-128
[15]E.L·雷定著,赵钟岳译,骨科实用生物力学[M].北京:人民卫生出版社,1983.75,148-149
[16]陶祖莱.生物力学导论[M].天津:天津科技翻译出版公司,2000.87-88.
[17]易日.使用ANSYS6.1进行结构力学分析[M].北京大学出版社,2000年11月1日第一版
[18]Gallagher RH,Brown TD.Finite elements in biomechanics.New Work:John Wiley& Sons.1982
[19]王以进.不同步态下人体股骨的有限元分析.上海科技大学学报 1980(2)34
[20]Brown TD,Digioin AM.A nonlinear finite element analysis of some early collapse in femoral head osteonecrosis.J Biomech 1982,15:705
[21]刘安庆,张银光一,王春生,人股骨生物力学特性的有限元分析,西安医科大学学报,2001,22(3)242-244
[22]Viceconti,-M;Brusi,-G;Pancanti,-A;Cristofolini,-L,Primary stability of an anatomical cementless hip stem:a statistical analysis.J-Biomech.2006;39(7):1169-79
[23]Sakai,-R;Itoman,-M;Mabuchi,-K,Assessments of different kinds of stems by experiments and FEM analysis:appropriate stress distribution on a hip prosthesis.Clin-Biomech-(Bristol,-Avon).2006 Oct;21(8):826-33
[24]Zalzal,-P;Backstein,-D;Gross,-A-E;Papini,-M,Notching of the anterior femoral cortex during total knee arthroplasty characteristics that increase local stresses.J-Arthroplasty.2006 Aug;21(5):737-43
[1]David V.Huron著,武建华 缩编.Fundamentals of Finite Element Analysis,重 庆大学出版社,2007年3月第1版,ISBN 978-7-5624-3856-4
[2]Robert D.Cook著,有限元分析的概念与应用,西安交通大学,2007年9月第四版
[3]易日,使用ANSYS6.1进行结构力学分析[M].北京大学出版社,2000年11月1日第一版
[4]Kumaresan S,Yoganandan N,Pintar FA.,Finite element analysis of the cervical spine:a material property sensitivity study.Clin Biomech,1999;14(1):41-53
[5]蔡谞.生物复合型中空人工关节假体.世界医疗器械,2004,10(2):12-15.
[6]刘安庆,张银光一,王春生,人股骨生物力学特性的有限元分析,西安医科大学学报,2001,22(3)242-244
[7]苏皖,卜海富,何仿,正常双腿站立位股骨上段应力分布的三维有限元分析,临床骨科杂志,2003,6(1)1-3
[8]Viceconti,-M;Brusi,-G;Pancanti,-A;Cristofolini,-L,Primary stability of an anatomical cementless hip stem:a statistical analysis.J-Biomech.2006;39(7):1169-79
[9]Sakai,-R;Itoman,-M;Mabuchi,-K,Assessments of different kinds of stems by experiments and FEM analysis:appropriate stress distribution on a hip prosthesis.Clin-Biomech-(Bristol,-Avon).2006 Oct;21(8):826-33
[10]Zalzal,-P;Backstein,-D;Gross,-A-E;Papini,-M,Notching of the anterior femoral cortex during total knee arthroplasty characteristics that increase local stresses.J-Arthroplasty.2006 Aug;21(5):737-43
[11]安新伟,张晓兵,尹涵春.医学图像三维重建的研究[J].电子器件,2001,24(3):207-212
[12]罗承刚,龚宪生.近端股骨的非均匀及各向异性有限元模型[J],重庆大学学报,2004,27(2):20.23
[13]Gautier E,Bachler R,Heini PF,et al.Accuracy of computer-guided screw fixation of the sacroiliac joint[J].Clin Orthop,2001,393:310-317
[2]Mitsuo Niinomi.Recent research and development in titanium alloys for biomedical applications and healthcare goods[J].Sci Technol Advan Mater,2003,4:445.454
[3]罗承刚,龚宪生.近端股骨的非均匀及各向异性有限元模型[J],重庆大学学报,2004,27(2):20.23
[4]David V.Huron著,武建华 缩编.Fundamentals of Finite Element Analysis[M],重庆大学出版社。2007年3月第1版,ISBN 978-7-5624-3856-4
[5]毛宾尧.髋关节外科学[M].第1版.北京:人民卫生出版社。1998.36(Mao Binyao.The surgery of the hip joint.Beijing:People's Health Press,1998,36(in Chinese))
[6]戴尅戎,王以进译:骨骼系统的生物力学基础[M],学林出版社。1985:17
[7]王天英,江福川,王西十.人体髋关节接触力计算分析一例[J].力学与实践.2005年第27卷第2期.:67-69
[8]Van Rietbergen B,Huiskes R.Load transfer and stress shielding of the hydroxyapatite-ABG hip:a study of stem length and proximal fixation[J].J Arthroplasty,2001,16:55-63
[9]Albrektsson T,Jacobsson M,Kalebo P.The harvest chamber-a newly developed implant for analysis of bone remodelling in situ.In:Ducheyne P,Vander Perre G,Aubert AE(Eds.).Biomaterials and Biomechanics.Amsterdam:Elsevier Science Publishers B.V.,1984.283-288
[10]Bostrom MPG,Aspenberg P,Jeppsson C,et al.Enhancement of bone formation in the setting of repeated tissue deformation.Clin Orthop,1998,350:221-228.
[11]Termaat,Denboer,Bakker,et al.Bone Morphogenetic Proteins.J Bone Joint Surg(Am),2005,87:1367-1378
[12]唐六丁,赵为民,徐杨,股骨假体的界面生物力学仿真分析.河南科技大学学报,2004,21(4)255-257
[13]廖湘凌,李声伟,田卫东,中空多孔钛种植体复合牛骨形成蛋白的实验研究.中国口腔种植学杂志,2000,5(2)73-76
[14]Jackson M,Learmonth ID.The treatment of nonunion after intracapsular fractureof the proximal femur.Clin Orthop,2002,(399):119-128
[15]E.L·雷定著,赵钟岳译,骨科实用生物力学[M].北京:人民卫生出版社,1983.75,148-149
[16]陶祖莱.生物力学导论[M].天津:天津科技翻译出版公司,2000.87-88.
[17]易日.使用ANSYS6.1进行结构力学分析[M].北京大学出版社,2000年11月1日第一版
[18]Gallagher RH,Brown TD.Finite elements in biomechanics.New Work:John Wiley& Sons.1982
[19]王以进.不同步态下人体股骨的有限元分析.上海科技大学学报 1980(2)34
[20]Brown TD,Digioin AM.A nonlinear finite element analysis of some early collapse in femoral head osteonecrosis.J Biomech 1982,15:705
[21]刘安庆,张银光一,王春生,人股骨生物力学特性的有限元分析,西安医科大学学报,2001,22(3)242-244
[22]Viceconti,-M;Brusi,-G;Pancanti,-A;Cristofolini,-L,Primary stability of an anatomical cementless hip stem:a statistical analysis.J-Biomech.2006;39(7):1169-79
[23]Sakai,-R;Itoman,-M;Mabuchi,-K,Assessments of different kinds of stems by experiments and FEM analysis:appropriate stress distribution on a hip prosthesis.Clin-Biomech-(Bristol,-Avon).2006 Oct;21(8):826-33
[24]Zalzal,-P;Backstein,-D;Gross,-A-E;Papini,-M,Notching of the anterior femoral cortex during total knee arthroplasty characteristics that increase local stresses.J-Arthroplasty.2006 Aug;21(5):737-43
[1]David V.Huron著,武建华 缩编.Fundamentals of Finite Element Analysis,重 庆大学出版社,2007年3月第1版,ISBN 978-7-5624-3856-4
[2]Robert D.Cook著,有限元分析的概念与应用,西安交通大学,2007年9月第四版
[3]易日,使用ANSYS6.1进行结构力学分析[M].北京大学出版社,2000年11月1日第一版
[4]Kumaresan S,Yoganandan N,Pintar FA.,Finite element analysis of the cervical spine:a material property sensitivity study.Clin Biomech,1999;14(1):41-53
[5]蔡谞.生物复合型中空人工关节假体.世界医疗器械,2004,10(2):12-15.
[6]刘安庆,张银光一,王春生,人股骨生物力学特性的有限元分析,西安医科大学学报,2001,22(3)242-244
[7]苏皖,卜海富,何仿,正常双腿站立位股骨上段应力分布的三维有限元分析,临床骨科杂志,2003,6(1)1-3
[8]Viceconti,-M;Brusi,-G;Pancanti,-A;Cristofolini,-L,Primary stability of an anatomical cementless hip stem:a statistical analysis.J-Biomech.2006;39(7):1169-79
[9]Sakai,-R;Itoman,-M;Mabuchi,-K,Assessments of different kinds of stems by experiments and FEM analysis:appropriate stress distribution on a hip prosthesis.Clin-Biomech-(Bristol,-Avon).2006 Oct;21(8):826-33
[10]Zalzal,-P;Backstein,-D;Gross,-A-E;Papini,-M,Notching of the anterior femoral cortex during total knee arthroplasty characteristics that increase local stresses.J-Arthroplasty.2006 Aug;21(5):737-43
[11]安新伟,张晓兵,尹涵春.医学图像三维重建的研究[J].电子器件,2001,24(3):207-212
[12]罗承刚,龚宪生.近端股骨的非均匀及各向异性有限元模型[J],重庆大学学报,2004,27(2):20.23
[13]Gautier E,Bachler R,Heini PF,et al.Accuracy of computer-guided screw fixation of the sacroiliac joint[J].Clin Orthop,2001,393:310-317