Photoelastic Analysis of the Vertebral Fixation System Using Different Screws
DOI:
https://doi.org/10.48084/etasr.144Keywords:
photoelasticity, biomechanics, pullout strength, vertebral fixation systemAbstract
The purpose of this study was to compare using photoelasticity, the internal stresses produced by two types of pedicular screws (Synthes™) with three different diameters, when submitted to different pullout strengths. The fringe orders were evaluated around the screws using the Tardy compensation method. In all the models analyzed, the shear stress was calculated. Results showed that, independently of the applied load, the screw of smaller outer diameter had larger values of shear stress. According to the analysis realized, we observed that the place of highest stress was in the last thread, close to the head of the screws.
References
A. W. L. Kwok, J. A. Finkelstein, T. Woodside, T. C. Hearn, R. W. Hu, “Insertional torque and pullout strengths of conical and cylindrical pedicle screw in cadaveric bone”, Spine, Vol. 21, No. 21, pp. 2429-2434, 1996
M. Pfeiffer, L. G. Gilbertson, V. K. Goel, P. Griss, J. C. Keller, T. C. Ryken, H. E. Hoffman, “Effect of specimen fixation method on pullout tests of pedicle screws”, Spine, Vol. 21, No. 9, pp. 1037-1044, 1996
C. T. Vangsness Jr, D. R. Carter, V. H. Frankel, “In vitro evaluation of the loosening characteristics of self-tapped and non-selftapped cortical bone screws”, Clinical Orthopaedics and Related Research, Vol. 157, pp. 279-286, 1981
Q. H. Zhang, S. H. Tan, S. M. Chou, “Investigation of screw pull-out strength on human spine”, Journal of Biomechanics, Vol. 37, No. 4, pp. 479-485, 2004
T. Hirano, K. Hasegawa, H. E. Takahashi, U. Seiji, H. Toshiaki, W. Toshikatsu, S. Toru, Y. Motoo, I. Masayuki, “Structural characteristics of the pedicle and its role in screw stability”, Spine, Vol. 22, No. 21, pp. 2504-2509, 1997
T. H. Lim, H. S. An, C. Evanich, K. Y. Hasanoglu, L. McGrady, C. R. Wilson, “Strength of anterior vertebral screw fixation in relationship to bone mineral density”, Journal of Spinal Disorders, Vol. 8, No. 2, pp. 121-125, 1995
B. S. Myers, P. J. Belmont Jr, W. J. Richardson, J. R. Yu, K. D. Harper, R. W. Nightingale, “The role of imaging and in situ biomechanical testing in assessing pedicle screw pull-out strength”, Spine, Vol. 21, No. 17, pp. 1962-1968, 1996
M. R. Zindrick, L. L. Wiltse, E. H. Widell, “A biomechanical study of intrapedicular screw fixation in the lumbar spine”, Clinical Orthopaedics and Related Research, Vol. 203, pp. 99-112, 1986
P. M. Zink, “Performance of ventral spondylodesis screws in cervical vertebrae of varying bone mineral density”, Spine, Vol. 21, No. 1, pp. 45-52, 1996
M. Law, A. F. Tencer, P. A. Anderson, “Caudo-cephalad loading of pedicle screw: mechanisms of loosening and methods of augmentation”, Spine, Vol. 18, pp. 2438-2443, 1993
A. Alobaid, V. Arlet, A. Busato, T. Steffen, “Pull-out strength of the suprapedicle claw construct: a biomechanical study”, European Spine Journal, Vol. 14, No. 8, pp. 759-764, 2005
C. C. Hsu, C. K. Chao, J. L. Wang, S. M. Hou, Y. T. Tsai, J. Lin, “Increase of pullout strength of spinal pedicle screws with conical core: biomechanical tests and finite element analyses”, Journal of Orthopaedic Research, Vol. 23, pp. 788-794, 2005
B. B. Abshire, R. F. McLain, A. Valdevit, H. E. Kambic, “Characteristics of pullout failure in conical and cylindrical pedicle screws after full insertion and back-out”, Spine, Vol. 1, pp. 408-414, 2001
C. A. Lill, E. Schneider, J. Goldhahn, A. Haslemann, F. Zeifang, “Mechanical performance of cylindrical and dual core pedicle screws in calf and human vertebrae”, Archives of orthopaedic and trauma surgery, Vol. 126, No. 10, pp. 686-694, 2006
D. W. Bühler, U. Berlemann, T. R. Oxland, N. Lutz-Peter, “Moments and forces during pedicle screw insertion: in vitro and in vivo measurements”, Spine, Vol. 23, No. 11, pp. 1220-1227, 1998
S. D. Cook, S. L. Salkeld, T. Stanley, A. Faciane, S. D. Miller, “Biomechanical study of pedicle screw fixation in severely osteoporotic bone”, Spine journal, Vol. 4, No. 4, pp. 402-408, 2004
S. Eggli, “Biomechanical testing of three newly developed transpedicular multisegmental fixation systems”, European Spine Journal, Vol. 1, No. 2, pp. 109-116, 1992
S. Soshi, R. Shiba, H. Kondo, K. Murota, “An experimental study on transpedicular screw fixation in relation to osteoporosis of the lumbar spine”, Spine, Vol. 16, No. 11, pp. 1335–1341, 1991
J. D. Coe, “Influence of bone mineral density on the fixation of thoracolumbar implants: a comparative study of transpedicular screws, laminar hooks, and spinous process wires”, Spine, Vol. 15, No. 9, pp. 902-907, 1990
D. B. Mahler, F. A. Peyton, “Photoelasticity as a research technique for analyzing stresses in dental structures”, Journal of Dental Research, Vol. 34, No. 6, pp. 831-838, 1955
A. R. Mac Gregor, T. P. G. Miller, J. W. Farah, “Stress analysis of partial dentures”, Journal of Dentistry, Vol. 6, No. 2, pp. 125-132, 1978
J. W. Dally, W. F. Riley, “Experimental stress analysis”, 1991, 3ª ed. Nova York: Mcgraw-Hill
Y. Okada, S. Ikeda, T. Fukuda, F. Arai, M. Negoro, I. Takahashi, “Photoelastic Stress Analysis on Patient-Specific Anatomical Model of Cerebral Artery”, Proceeding of the Symposium on Micro-NanoMechatronics and Human Science, pp. 538-543, 2007
S. F. Fakhouri, C. A. Araujo, A. Zamarioli, E. Timóteo, A. C. Shimano, “Analysis of compressive distributional load of intervertebral disc L4-L5 meand of photoelasticity”, Fiep Bulletin, Vol. 79, pp. 21-23, 2009
L. E. Gayet, P. Pries, H. Hamcha, J. P. Clarac, J. Texereau, “Biomechanical study and digital modeling of traction resistance in posterior thoracic implants”, Spine, Vol. 27, pp. 707-714, 2002
A. Ono, M. D. Brown, L. L. Latta, E. L. Milne, D. C. Holmes, “Triangulated pedicle screw construct technique and pull-out strength of conical and cylindrical screws”, Journal of spinal disorders, Vol. 14, No. 4, pp. 323-329, 2001
S. Inceoglu, L. Ferrara, R. F. McLan, “Pedicle screw fixation strength: pullout versus insertional torque”, Spine, Vol. 4, No. 5, pp. 513-518, 2004
J. W. Barber, S. D. Boden, T. Ganey, W. C. Hutton, “Biomechanical study of lumbar pedicle screws: does convergence affect axial pullout strength?”, Journal of Spinal Disorders, Vol. 11, No. 3, pp. 215-220, 1998
T. A. De Coster, D. B. Heetderks, D. J. Downey, J. S. Ferries, W. Jones, “Optimizing bone screw pullout force”, Journal of Orthopaedic Trauma, Vol. 4, No. 2, pp. 169-174, 1990
T. K. Daftari, W. C. Horton, W. C. Hutton, “Correlations between screw hole preparation, torque of insertion, and pullout strength for spinal screws”, Journal of Spinal Disorders, Vol. 7, No. 2, pp. 139-145, 1994
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after its publication in ETASR with an acknowledgement of its initial publication in this journal.
