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تحلیل بیومکانیکی مدل اجزای محدود ستون فقرات کمری تحت بارگذاریهای مختلف | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| دوره 56، شماره 11، بهمن 1403، صفحه 1475-1496 اصل مقاله (1.51 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2025.23781.7812 | ||
| نویسندگان | ||
| علی کمالی؛ لاله فتاحی* ؛ علیرضا نعیمی فرد | ||
| گروه مهندسی مکانیک، دانشکده مهندسی، دانشگاه شهید چمران اهواز، اهواز، ایران | ||
| چکیده | ||
| بدن انسان طی فعالیتهای روزمره تحت نیروها و گشتاورهای متعددی قرار دارد. یکی از مهمترین اندامهای بدن به منظور تحمل این نیروها، ستون فقرات است که متشکل از مهرههای متناوب و دیسکهای بینمهرهای بوده و توسط رباطها و ماهیچهها استحکام مییابد. ستون فقرات قابلیت خم شدن رو به جلو و عقب، خمش جانبی و پیچش محوری را دارد و به همین دلیل در معرض آسیبهای متعددی قرار دارد. از این رو، مدلسازی و تحلیل عددی ستون فقرات و محاسبه نیروها و تنشهای ایجاد شده در آن در شرایط مختلف از اهمیت بالایی در پیشگیری از آسیبهای احتمالی ستون فقرات برخوردار است. در پژوهش حاضر یک مدل اجزای محدود صحتسنجی شده از بخش انتهایی ستون فقرات کمری انسان شامل دو مهره L4 و L5 و دیسک بینمهرهای بههمراه صفحات انتهایی و رباطها ارائه میشود. لازم به ذکر است که مهرههای انتهایی ستون فقرات از جمله شایعترین مکان دردهای کمری است و در این پژوهش نیز جهت بررسی آسیب در اثر بارگذاریهای مختلف در این بخش، مقادیر تنش و کرنش ایجاد شده با مقادیر تسلیم بافت موردنظر مقایسه شده و وقوع آسیب بررسی میگردد. | ||
| کلیدواژهها | ||
| ستون فقرات کمری؛ تحلیل بیومکانیکی؛ روش اجزای محدود؛ تحلیل تنش؛ پیشبینی آسیب | ||
| عنوان مقاله [English] | ||
| Biomechanical analysis of the lumbar spine under different loading conditions | ||
| نویسندگان [English] | ||
| Ali Kamali؛ Laleh Fatahi؛ Ali Reza Naeimifard | ||
| Department of Mechanical Engineering, Engineering Faculty, Shahid Chamran University of Ahvaz, Iran | ||
| چکیده [English] | ||
| The human body is exposed to many forces and moments during daily activities. The spine is one of the most important structures that bear these forces and may be prone to multiple injuries. Therefore, numerical modeling and analysis of the lumbar spine under various loading conditions is very beneficial to prevent injuries. This study aims to provide a valid finite element model of the L4-L5 segment of the human lumbar spine for static analysis. The model includes two vertebrae, intervertebral discs, end plates, and ligaments. To model the mechanical properties of the lumbar spine, elastic and hyperelastic behaviors have been used for different parts of the spine. Moreover, stress and strain distribution in different tissues, under various loading conditions, were compared with the allowable thresholds of the tissues to investigate the possibility of tissue damage. Note that it was assumed that tissue damage occurs when the stresses and strains in the desired tissue exceed the elastic range. However, based on the obtained results, under the investigated loading conditions, none of the model components were damaged. | ||
| کلیدواژهها [English] | ||
| Lumbar Spine, Biomechanical Analysis, Finite Element Method, Stress Analysis, Injury Prediction | ||
| مراجع | ||
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[1] V. Divya, M. Anburajan, Finite element analysis of human lumbar spine, In: ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology, IEEE, (2011), 350–354. [2] M. Kurutz, Finite element modelling of human lumbar spine, In: D. Moratal, (Ed.), Finite Element Analysis, InTechOpen, (2010), 209–236. [3] R. Zdero, H. Bougherar, Orthopaedic biomechanics: a practical approach to combining mechanical testing and finite element analysis, In: D. Moratal, (Ed.), Finite Element Analysis, IntechOpen, (2010), 171–194. [4] A. Rawls, R.E. Fisher, Developmental and functional anatomy of the spine, Genet. Dev. Scoliosis, 1, (2018), 1–29. [5] T. R. Oxland, Fundamental biomechanics of the spine—what we have learned in the past 25 years and future directions, J. Biomech., 49(6), (2016), 817-832. [6] J.F. Behrsin, C.A. Briggs, Ligaments of the lumbar spine: a review, Surg. Radiol. Anat. SRA, 10(3), (1988), 211–219. [7] T. Belytschko, R.F. Kulak, A.B. Schultz, J.O. Galante, Finite element stress analysis of an intervertebral disc, J. Biomech., 7(3), (1974), 277–285. [8] S.A. Shirazi-Adl, S.C. Shrivastava, A.M. Ahmed, Stress analysis of the lumbar disc-body unit in compression. A three-dimensional nonlinear finite element study, Spine, 9(2), (1984), 120–134. [9] A. Shirazi-Adl, A.M. Ahmed, S.C. Shrivastava, Mechanical response of a lumbar motion segment in axial torque alone and combined with compression, Spine, 11(9), (1986), 914–927. [10] A.G. Patwardhan, R.M. Havey, K.P. Meade, B. Lee, B. Dunlap, A follower load increases the load-carrying capacity of the lumbar spine in compression, Spine, 24(10), (1999), 1003–1009. [11] H. Zhang, W. Zhu, The path to deliver the most realistic follower load for a lumbar spine in standing posture: a finite element study, J. Biomech. Eng., 141(3), (2019), 31010. [12] J. Noailly, D. Lacroix, J.A. Planell, Finite element study of a novel intervertebral disc substitute, Spine (Phila Pa 1976), 30(20), (2005), 2257–2264. [13] J. Noailly, H.J. Wilke, J.A. Planell, D. Lacroix, How does the geometry affect the internal biomechanics of a lumbar spine bi-segment finite element model? Consequences on the validation process, J. Biomech., 40(11), (2007), 2414–2425. [14] U.M. Ayturk, C.M. Puttlitz, Parametric convergence sensitivity and validation of a finite element model of the human lumbar spine, Comput. Methods Biomech. Biomed. Engin., 14(8), (2011), 695–705. [15] F. Niemeyer, H.J. Wilke, H. Schmidt, Geometry strongly influences the response of numerical models of the lumbar spine—a probabilistic finite element analysis, J. Biomech., 45(8), (2012), 1414–1423. [16] M. Dreischarf, T. Zander, A. Shirazi-Adl, C.M. Puttlitz, C.J. Adam, C.S. Chen, et al., Comparison of eight published static finite element models of the intact lumbar spine: predictive power of models improves when combined together, J. Biomech., 47(8), (2014), 1757–1766. [17] F. Azari, N. Arjmand, A. Shirazi-Adl, T. Rahimi-Moghaddam, A combined passive and active musculoskeletal model study to estimate L4-L5 load sharing, J. Biomech., 70, (2018), 157–165. [18] I. Dehghan‐Hamani, N. Arjmand, A. Shirazi‐Adl, Subject‐specific loads on the lumbar spine in detailed finite element models scaled geometrically and kinematic‐driven by radiography images, Int. J. Numer. Method Biomed. Eng., 35(4), (2019), e3182. [19] S. Naserkhaki, N. Arjmand, A. Shirazi-Adl, F. Farahmand, M. El-Rich, Effects of eight different ligament property datasets on biomechanics of a lumbar L4-L5 finite element model, J. Biomech., 70, (2018), 33–42. [20] D. Sanjay, N. Kumar, S. Chanda, Stress-strain distribution in intact L4-L5 vertebrae under the influence of physiological movements: A finite element (FE) investigation, In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, (2021), 12024. [21] T. Pitzen, F.H. Geisler, D. Matthis, H. Müller-Storz, K. Pedersen, W.I. Steudel, The influence of cancellous bone density on load sharing in human lumbar spine: a comparison between an intact and a surgically altered motion segment, Eur. Spine J., 10, (2001), 23–29. [22] K.D. Cao, M.J. Grimm, K.H. Yang, Load sharing within a human lumbar vertebral body using the finite element method, Spine (Phila Pa 1976), 26(12), (2001), 253–260. [23] E. Punarselvam, M.Y. Sikkandar, M. Bakouri, N.B. Prakash, T. Jayasankar, S. Sudhakar, Different loading condition and angle measurement of human lumbar spine MRI image using ANSYS, J. Ambient Intell. Humaniz. Comput., 12, (2021), 4991–5004. [24] M. Tanaka, Biomechanical investigation on the influence of the regional material degeneration of an intervertebral disc in a lower lumbar spinal unit: a finite element study, Comput. Biol. Med., 98, (2018), 26–38. [25] X. Cai, M. Sun, Y. Huang, Z. Liu, C. Liu, C. Du, et al., Biomechanical effect of L4–L5 intervertebral disc degeneration on the lower lumbar spine: a finite element study, Orthop. Surg., 12(3), (2020), 917–930. [26] J.K. Biswas, M. Rana, A. Malas, S. Roy, S. Chatterjee, S. Choudhury, Effect of single and multilevel artificial intervertebral disc replacement in lumbar spine: a finite element study, Int. J. Artif. Organs, 45(2), (2022), 193–199. [27] G. Baroud, J. Nemes, P. Heini, T. Steffen, Load shift of the intervertebral disc after a vertebroplasty: a finite-element study, Eur. Spine J., 12, (2003), 421–426. [28] E. Wagnac, P.J. Arnoux, A. Garo, C.E. Aubin, Finite element analysis of the influence of loading rate on a model of the full lumbar spine under dynamic loading conditions, Med. Biol. Eng. Comput., 50, (2012), 903–915. [29] Z.C. Zhong, S.H. Wei, J.P. Wang, C.K. Feng, C.S. Chen, C. Yu, Finite element analysis of the lumbar spine with a new cage using a topology optimization method, Med. Eng. Phys., 28(1), (2006), 90–98. [30] C.S. Chen, C.K. Cheng, C.L. Liu, W.H. Lo, Stress analysis of the disc adjacent to interbody fusion in lumbar spine, Med. Eng. Phys., 23(7), (2001), 485–493. [31] E. Wagnac, P.J. Arnoux, A. Garo, M. El-Rich, C.E. Aubin, Calibration of hyperelastic material properties of the human lumbar intervertebral disc under fast dynamic compressive loads, J. Biomech. Eng., 133(10) (2011), 1010071-10. [32] F.A. Pintar, N. Yoganandan, T. Myers, A. Elhagediab, A. Sances Jr, Biomechanical properties of human lumbar spine ligaments, J. Biomech., 25(11) (1992), 1351–1356. | ||
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