Three-dimensional Finite Element Analysis of Biomechanical Effect of Rigid Fixation and Elastic Fixation on Lumbar Interbody Fusion_Journal of Biomedical Engineering

Authors：

WEIJiangbo ^1,2 ,  SONGYueming ¹ , LIULimin ¹ , ZHOUChunguan ¹ , YANGXi ¹

1. Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China;
2. Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning 530011, China;

Corresponding author：

SONGYueming, Email: sym_cd@aliyun.com

Keywords：

rigid fixation; elastic fixation; lumbar fusion; three-dimensional finite element analysis

DOI：

10.7507/1001-5515.20150058

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Abstract Full text Figures/Tables Video References Cited by

This study was aimed to compare the mechanical characteristics under different physiological load conditions with three-dimensional finite element model of rigid fixation and elastic fixation in the lumbar. We observed the stress distribution characteristics of a sample of healthy male volunteer modeling under vertical, flexion and extension torque situation. The outcomes showed that there existed 4-6 times pressure on the connecting rod of rigid fixation compared with the elastic fixations under different loads, and the stress peak and area of force on elastic fixation were much higher than that of the rigid fixations. The elastic fixation has more biomechanical advantages than rigid fixation in promoting interbody lumbar fusion after surgery.

Citation： WEIJiangbo, SONGYueming, LIULimin, ZHOUChunguan, YANGXi. Three-dimensional Finite Element Analysis of Biomechanical Effect of Rigid Fixation and Elastic Fixation on Lumbar Interbody Fusion. Journal of Biomedical Engineering, 2015, 32(2): 316-320. doi: 10.7507/1001-5515.20150058 Copy

1.	GOEL V K, KONZ R J, CHANG H T, et al. Hinged-dynamic posterior device permits greater loads on the graft and simila stability as compared with its equivalent rigid device:a three-dimensional finite element assessment[J]. J Prosthet Orthop, 2001, 13(1):17-20.
2.	DUFFIELD R C, CARSON W L, CHEN Liuyuan, et al. Longitudinal element size effect on load sharing, internal loads, and fatigue life of tri-level spinal implant constructs[J]. Spine (Phila Pa 1976), 1993, 18(12):1695-1703.
3.	OKUDA S, MIYAUCHI A, ODA T, et al. Surgical complications of posterior lumbar interbody fusion with total facetectomy in 251 patients[J]. J Neurosurg Spine, 2006, 4(4):304-309.
4.	GOMLEKSIZ C, SASANI M, OKTENOGLU T, et al. A short history of posterior dynamic stabilization[J]. Adv Orthop, 2012, 2012:Article ID 629698.
5.	CHRISTIE S D, SONG J K, FESSLER R G. Dynamic interspinous process technology[J]. Spine (Phila Pa 1976), 2005, 30(16 Suppl):S73-S78.
6.	闫家智, 吴志宏, 汪学松, 等.腰椎三维有限元模型建立和应力分析[J].中华医学杂志, 2009, 89(17):1162-1165.
7.	王乃国.腰椎棘突间动力固定的三维有限元分析和前瞻性临床研究[D].北京:中国协和医科大学, 2010.
8.	BARREY C Y. Dynamic instrumentation for fusion with Isobar TTL^TM:biomechanical and clinical aspects[J]. ArgoSpine News J, 2010, 22(2):62-66.
9.	NIOSI C A, ZHU Q A, WILSON D C, et al. Biomechanical characterization of the three-dimensional kinematic behaviour of the Dynesys dynamic stabilization system:an in vitro study[J]. Eur Spine J, 2006, 15(6):913-922.
10.	SCHMOELZ W, HUBER J F, NYDEGGER T, et al. Influence of a dynamic stabilisation system on load bearing of a bridged disc:an in vitro study of intradiscal pressure[J]. Eur Spine J, 2006, 15(8):1276-1285.
11.	ROHLMANN A, BURRA N K, ZANDER T, et al. Comparison of the effects of bilateral posterior dynamic and rigid fixation devices on the loads in the lumbar spine:a finite element analysis[J]. Eur Spine J, 2007, 16(8):1223-1231.
12.	CHENG B C, GORDON J, CHENG J, et al. Immediate biomechanical effects of lumbar posterior dynamic stabilization above a circumferential fusion[J]. Spine (Phila Pa 1976), 2007, 32(23):2551-2557.
13.	CHRASTIL J, PATEL A A. Complications associated with posterior and transforaminal lumbar interbody fusion[J]. J Am Acad Orthop Surg, 2012, 20(5):283-291.
14.	ROHLMANN A, CALISSE J, BERGMANN G, et al. Internal spinal fixator stiffness has only a minor influence on stresses in the adjacent discs[J]. Spine (Phila Pa 1976), 1999, 24(12):1192-1195; discussion 1195-6.
15.	TSUBOTA K I, ADACHI T, TOMITA Y. Effects of a fixation screw on trabecular structural changes in a vertebral body predicted by remodeling simulation[J]. Ann Biomed Eng, 2003, 31(6):733-740.
16.	WILKE H J, DRUMM J, HÄUSSLER K, et al. Biomechanical effect of different lumbar interspinous implants on flexibility and intradiscal pressure[J]. Eur Spine J, 2008, 17(8):1049-1056.

1. GOEL V K, KONZ R J, CHANG H T, et al. Hinged-dynamic posterior device permits greater loads on the graft and simila stability as compared with its equivalent rigid device:a three-dimensional finite element assessment[J]. J Prosthet Orthop, 2001, 13(1):17-20.
2. DUFFIELD R C, CARSON W L, CHEN Liuyuan, et al. Longitudinal element size effect on load sharing, internal loads, and fatigue life of tri-level spinal implant constructs[J]. Spine (Phila Pa 1976), 1993, 18(12):1695-1703.
3. OKUDA S, MIYAUCHI A, ODA T, et al. Surgical complications of posterior lumbar interbody fusion with total facetectomy in 251 patients[J]. J Neurosurg Spine, 2006, 4(4):304-309.
4. GOMLEKSIZ C, SASANI M, OKTENOGLU T, et al. A short history of posterior dynamic stabilization[J]. Adv Orthop, 2012, 2012:Article ID 629698.
5. CHRISTIE S D, SONG J K, FESSLER R G. Dynamic interspinous process technology[J]. Spine (Phila Pa 1976), 2005, 30(16 Suppl):S73-S78.
6. 闫家智, 吴志宏, 汪学松, 等.腰椎三维有限元模型建立和应力分析[J].中华医学杂志, 2009, 89(17):1162-1165.
7. 王乃国.腰椎棘突间动力固定的三维有限元分析和前瞻性临床研究[D].北京:中国协和医科大学, 2010.
8. BARREY C Y. Dynamic instrumentation for fusion with Isobar TTL^TM:biomechanical and clinical aspects[J]. ArgoSpine News J, 2010, 22(2):62-66.
9. NIOSI C A, ZHU Q A, WILSON D C, et al. Biomechanical characterization of the three-dimensional kinematic behaviour of the Dynesys dynamic stabilization system:an in vitro study[J]. Eur Spine J, 2006, 15(6):913-922.
10. SCHMOELZ W, HUBER J F, NYDEGGER T, et al. Influence of a dynamic stabilisation system on load bearing of a bridged disc:an in vitro study of intradiscal pressure[J]. Eur Spine J, 2006, 15(8):1276-1285.
11. ROHLMANN A, BURRA N K, ZANDER T, et al. Comparison of the effects of bilateral posterior dynamic and rigid fixation devices on the loads in the lumbar spine:a finite element analysis[J]. Eur Spine J, 2007, 16(8):1223-1231.
12. CHENG B C, GORDON J, CHENG J, et al. Immediate biomechanical effects of lumbar posterior dynamic stabilization above a circumferential fusion[J]. Spine (Phila Pa 1976), 2007, 32(23):2551-2557.
13. CHRASTIL J, PATEL A A. Complications associated with posterior and transforaminal lumbar interbody fusion[J]. J Am Acad Orthop Surg, 2012, 20(5):283-291.
14. ROHLMANN A, CALISSE J, BERGMANN G, et al. Internal spinal fixator stiffness has only a minor influence on stresses in the adjacent discs[J]. Spine (Phila Pa 1976), 1999, 24(12):1192-1195; discussion 1195-6.
15. TSUBOTA K I, ADACHI T, TOMITA Y. Effects of a fixation screw on trabecular structural changes in a vertebral body predicted by remodeling simulation[J]. Ann Biomed Eng, 2003, 31(6):733-740.
16. WILKE H J, DRUMM J, HÄUSSLER K, et al. Biomechanical effect of different lumbar interspinous implants on flexibility and intradiscal pressure[J]. Eur Spine J, 2008, 17(8):1049-1056.

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Three-dimensional Finite Element Analysis of Biomechanical Effect of Rigid Fixation and Elastic Fixation on Lumbar Interbody Fusion

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