Biomechanical Analysis of Different ProDisc-C Arthroplasty Design Parameters after Implanted: a Numerical Sensitivity Study Based on Finite Element Method_Journal of Biomedical Engineering

Authors：

TANGQiaohong ^1,2 , MOZhongjun ^1,2 , YAOJie ^1,2 , LIQi ^1,2 , DUChenfei ^1,2 ,  WANGLizhen ^1,2 , FANYubo ^1,2

1. Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China;
2. International Research Center for Implantable and Interventional Medical Devices, Beijing 100191, China;

Corresponding author：

WANGLizhen, Email: lizhenwang@buaa.edu.cn

Keywords：

artificial disc; finite element method; biomechanics; design parameters; curvature

DOI：

10.7507/1001-5515.20140240

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This study was aimed to estimate the effect of different ProDisc-C arthroplasty designs after it was implanted to C5-C6 cervicalspine. Finite element (FE) model of intact C5-C6 segments including the vertebrae and disc was developed and validated. Ball-and-socket artificial disc prosthesis model (ProDisc-C, Synthes) was implanted into the validated FE model and the curvature of the ProDisc-C prosthesis was varied. All models were loaded with compressed force 74 N and the pure moment of 1.8 Nm along flexion-extension and bilateral bending and axial torsion separately. The results indicated that the variation in the curvature of ball and socket configuration would influence the range of motion in flexion/extension, while there were not apparently differences under other conditions of loads. The method increasing the curvature will solve the stress concentration of the polyethylene, but it will also bring adverse outcomes, such as facet joint force increasing and ligament tension increasing. Therefore, the design of artificial discs should be considered comprehensively to reserve the range of motion as well as to avoid the adverse problems, so as not to affect the long-term clinical results.

Citation： TANGQiaohong, MOZhongjun, YAOJie, LIQi, DUChenfei, WANGLizhen, FANYubo. Biomechanical Analysis of Different ProDisc-C Arthroplasty Design Parameters after Implanted: a Numerical Sensitivity Study Based on Finite Element Method. Journal of Biomedical Engineering, 2014, 31(6): 1265-1271. doi: 10.7507/1001-5515.20140240 Copy

1.	JIRKOVA L, HORAK Z. Analysis of influence location of intervertebral implant on the lower cervical spine loading and stability[C]//LIM C T, GOH T C. IFMBE Proceedings:13th International Conference on Biomedical Engineering. Berlin Heidelberg:Springer Berlin Heidelberg, 2009, 23:1724-1727.
2.	FINN M A, BRODKE D S, DAUBS M, et al. Local and global subaxial cervical spine biomechanics after single-level fusion or cervical arthroplasty[J]. Eur Spine J, 2009, 18(10):1520-1527.
3.	梁磊,王新伟,袁文.颈椎人工椎间盘手术相关问题的共识与争议[J].中华外科杂志,2010,48(9):706-708.
4.	赵衍斌,孙宇,张凤山,等.单节段ProDisc-C颈椎人工椎间盘置换术对颈椎曲度和活动度的影响[J].中国脊柱脊髓杂志, 2010, 20(8):677-680.
5.	PHILLIPS F M, GARFIN S R. Cervical disc replacement[J]. Spine (Phila Pa 1976), 2005, 30(17 Suppl):S27-S33.
6.	ZHONG Z C, WEI S H, WANG J P, et al. Finite element analysis of the lumbar spine with a new cage using a topology optimization method[J]. Med Eng Phys, 2006, 28(1):90-98.
7.	ZHAO Y B, LI Q, MO Z, et al. Finite element analysis of cervical arthroplasty combined with fusion against 2-level fusion[J]. J Spinal Disord Tech, 2013, 26(6):347-350.
8.	NG H W, TEO E C, ZHANG Q H. Biomechanical effects of C2-C7 intersegmental stability due to laminectomy with unilateral and bilateral facetectomy[J]. Spine (Phila Pa 1976), 2004, 29(16):1737-1745.
9.	PANJABI M M, CRISCO J J, VASAVADA A, et al. Mechanical properties of the human cervical spine as shown by three-dimensional load-displacement curves[J]. Spine (Phila Pa 1976), 2001, 26(24):2692-2700.
10.	GOEL V K, CLAUSEN J D. Prediction of load sharing among spinal components of a C5-C6 motion segment using the finite element approach[J]. Spine (Phila Pa 1976), 1998, 23(6):684-691.
11.	KUMARESAN S, YOGANANDAN N, PINTAR F A. Finite element modeling approaches of human cervical spine facet joint capsule[J]. J Biomech, 1998, 31(4):371-376.
12.	ZHANG Q H, TEO E C, NG H W, et al. Finite element analysis of moment-rotation relationships for human cervical spine[J]. J Biomech, 2006, 39(1):189-193.
13.	MORONEY S P, SCHULTZ A B, MILLER J A, et al. Load-displacement properties of lower cervical spine motion segments[J]. J Biomech, 1988, 21(9):769-779.
14.	LEE S H, IM Y J, KIM K T, et al. Comparison of cervical spine biomechanics after fixed-and mobile-core artificial disc replacement:a finite element analysis[J]. Spine (Phila Pa 1976), 2011, 36(9):700-708.
15.	DIANGELO D J, FOLEY K T, MORROW B R, et al. In vitro biomechanics of cervical disc arthroplasty with the ProDisc-C total disc implant[J]. Neurosurg Focus, 2004, 17(3):E7.
16.	FAIZAN A, GOEL V K, GARFIN S R, et al. Do design variations in the artificial disc influence cervical spine biomechanics? A finite element investigation[J]. Eur Spine J, 2012, 21(Suppl 5):S653-S662.
17.	ROUSSEAU M A, BONNET X, SKALLI W. Influence of the geometry of a ball-and-socket intervertebral prosthesis at the cervical spine:a finite element study[J]. Spine (Phila Pa 1976), 2008, 33(1):E10-E14.
18.	HA S K. Finite element modeling of multi-level cervical spinal segments (C3-C6) and biomechanical analysis of an elastomer-type prosthetic disc[J]. Med Eng Phys, 2006, 28(6):534-541.
19.	GALBUSERA F, BELLINI C M, RAIMONDI M T, et al. Cervical spine biomechanics following implantation of a disc prosthesis[J]. Med Eng Phys, 2008, 30(9):1127-1133.
20.	ADAMS M A, MCNALLY D S, DOLAN P. ‘Stress’ distributions inside intervertebral discs. The effects of age and degeneration[J]. J Bone Joint Surg Br, 1996, 78(6):965-972.

1. JIRKOVA L, HORAK Z. Analysis of influence location of intervertebral implant on the lower cervical spine loading and stability[C]//LIM C T, GOH T C. IFMBE Proceedings:13th International Conference on Biomedical Engineering. Berlin Heidelberg:Springer Berlin Heidelberg, 2009, 23:1724-1727.
2. FINN M A, BRODKE D S, DAUBS M, et al. Local and global subaxial cervical spine biomechanics after single-level fusion or cervical arthroplasty[J]. Eur Spine J, 2009, 18(10):1520-1527.
3. 梁磊,王新伟,袁文.颈椎人工椎间盘手术相关问题的共识与争议[J].中华外科杂志,2010,48(9):706-708.
4. 赵衍斌,孙宇,张凤山,等.单节段ProDisc-C颈椎人工椎间盘置换术对颈椎曲度和活动度的影响[J].中国脊柱脊髓杂志, 2010, 20(8):677-680.
5. PHILLIPS F M, GARFIN S R. Cervical disc replacement[J]. Spine (Phila Pa 1976), 2005, 30(17 Suppl):S27-S33.
6. ZHONG Z C, WEI S H, WANG J P, et al. Finite element analysis of the lumbar spine with a new cage using a topology optimization method[J]. Med Eng Phys, 2006, 28(1):90-98.
7. ZHAO Y B, LI Q, MO Z, et al. Finite element analysis of cervical arthroplasty combined with fusion against 2-level fusion[J]. J Spinal Disord Tech, 2013, 26(6):347-350.
8. NG H W, TEO E C, ZHANG Q H. Biomechanical effects of C2-C7 intersegmental stability due to laminectomy with unilateral and bilateral facetectomy[J]. Spine (Phila Pa 1976), 2004, 29(16):1737-1745.
9. PANJABI M M, CRISCO J J, VASAVADA A, et al. Mechanical properties of the human cervical spine as shown by three-dimensional load-displacement curves[J]. Spine (Phila Pa 1976), 2001, 26(24):2692-2700.
10. GOEL V K, CLAUSEN J D. Prediction of load sharing among spinal components of a C5-C6 motion segment using the finite element approach[J]. Spine (Phila Pa 1976), 1998, 23(6):684-691.
11. KUMARESAN S, YOGANANDAN N, PINTAR F A. Finite element modeling approaches of human cervical spine facet joint capsule[J]. J Biomech, 1998, 31(4):371-376.
12. ZHANG Q H, TEO E C, NG H W, et al. Finite element analysis of moment-rotation relationships for human cervical spine[J]. J Biomech, 2006, 39(1):189-193.
13. MORONEY S P, SCHULTZ A B, MILLER J A, et al. Load-displacement properties of lower cervical spine motion segments[J]. J Biomech, 1988, 21(9):769-779.
14. LEE S H, IM Y J, KIM K T, et al. Comparison of cervical spine biomechanics after fixed-and mobile-core artificial disc replacement:a finite element analysis[J]. Spine (Phila Pa 1976), 2011, 36(9):700-708.
15. DIANGELO D J, FOLEY K T, MORROW B R, et al. In vitro biomechanics of cervical disc arthroplasty with the ProDisc-C total disc implant[J]. Neurosurg Focus, 2004, 17(3):E7.
16. FAIZAN A, GOEL V K, GARFIN S R, et al. Do design variations in the artificial disc influence cervical spine biomechanics? A finite element investigation[J]. Eur Spine J, 2012, 21(Suppl 5):S653-S662.
17. ROUSSEAU M A, BONNET X, SKALLI W. Influence of the geometry of a ball-and-socket intervertebral prosthesis at the cervical spine:a finite element study[J]. Spine (Phila Pa 1976), 2008, 33(1):E10-E14.
18. HA S K. Finite element modeling of multi-level cervical spinal segments (C3-C6) and biomechanical analysis of an elastomer-type prosthetic disc[J]. Med Eng Phys, 2006, 28(6):534-541.
19. GALBUSERA F, BELLINI C M, RAIMONDI M T, et al. Cervical spine biomechanics following implantation of a disc prosthesis[J]. Med Eng Phys, 2008, 30(9):1127-1133.
20. ADAMS M A, MCNALLY D S, DOLAN P. ‘Stress’ distributions inside intervertebral discs. The effects of age and degeneration[J]. J Bone Joint Surg Br, 1996, 78(6):965-972.

Journal of Biomedical Engineering

Biomechanical Analysis of Different ProDisc-C Arthroplasty Design Parameters after Implanted: a Numerical Sensitivity Study Based on Finite Element Method

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