Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The main results of a static analysis with a finite element model of the cervical section between C3 - C5 of a human spine are reported. In this case, it is assumed that the element C4 is completely damaged and has to be replaced. Therefore, a bone graft was installed between the anterior side of C3 and C5. Besides, a cervical plate of 55 mm. was fixed at the same side with 4 expansive screws. The resultant stresses caused by compression loads were analyzed and the displacements between the graft and adjacent vertebrae were calculated. Three loading conditions were applied: 80 N, 637.5 N and 6374.5 N. The first one corresponds to the head weight. In the second case, it is assumed that the average patient weight is supported by those vertebrae, while in the last one; the compression load failure is applied on the vertebrae. Results show that displacements were lower than 3 mm between the graft and the adjacent vertebrae. In accordance with the concept of spine stability after Müller [1], the arrangement is a stable one. Another advantage is that no wires are used in this surgical technique. Two more issues should be noticed. There is no risk that the plate may be broken and the geometry of the bone graft allows bone regeneration. These results are on line with those observed in preliminary experimental tests with porcine vertebrae.
Original languageAmerican English
Title of host publicationMechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra
Pages101-106
Number of pages90
ISBN (Electronic)0878494537, 9780878494538
DOIs
StatePublished - 1 Jan 2007
EventApplied Mechanics and Materials -
Duration: 1 Dec 2009 → …

Publication series

NameApplied Mechanics and Materials
Volume7-8
ISSN (Print)1660-9336

Conference

ConferenceApplied Mechanics and Materials
Period1/12/09 → …

Fingerprint

Calcium phosphate
Grafts
Patient rehabilitation
Bone
Static analysis
Loads (forces)
Wire
Geometry

Cite this

Beltrán-Fernández, J. A., Hernández-Gómez, L. H., Rodríguez-Cañizo, R. G., Urriolagoitia-Calderón, G., Urriolagoitia-Sosa, G., González-Revatú, A., & Dufoo-Olvera, M. (2007). Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. In Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra (pp. 101-106). (Applied Mechanics and Materials; Vol. 7-8). https://doi.org/10.4028/www.scientific.net/AMM.7-8.101
Beltrán-Fernández, J. A. ; Hernández-Gómez, L. H. ; Rodríguez-Cañizo, R. G. ; Urriolagoitia-Calderón, G. ; Urriolagoitia-Sosa, G. ; González-Revatú, A. ; Dufoo-Olvera, M. / Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. 2007. pp. 101-106 (Applied Mechanics and Materials).
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abstract = "The main results of a static analysis with a finite element model of the cervical section between C3 - C5 of a human spine are reported. In this case, it is assumed that the element C4 is completely damaged and has to be replaced. Therefore, a bone graft was installed between the anterior side of C3 and C5. Besides, a cervical plate of 55 mm. was fixed at the same side with 4 expansive screws. The resultant stresses caused by compression loads were analyzed and the displacements between the graft and adjacent vertebrae were calculated. Three loading conditions were applied: 80 N, 637.5 N and 6374.5 N. The first one corresponds to the head weight. In the second case, it is assumed that the average patient weight is supported by those vertebrae, while in the last one; the compression load failure is applied on the vertebrae. Results show that displacements were lower than 3 mm between the graft and the adjacent vertebrae. In accordance with the concept of spine stability after M{\"u}ller [1], the arrangement is a stable one. Another advantage is that no wires are used in this surgical technique. Two more issues should be noticed. There is no risk that the plate may be broken and the geometry of the bone graft allows bone regeneration. These results are on line with those observed in preliminary experimental tests with porcine vertebrae.",
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Beltrán-Fernández, JA, Hernández-Gómez, LH, Rodríguez-Cañizo, RG, Urriolagoitia-Calderón, G, Urriolagoitia-Sosa, G, González-Revatú, A & Dufoo-Olvera, M 2007, Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. in Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. Applied Mechanics and Materials, vol. 7-8, pp. 101-106, Applied Mechanics and Materials, 1/12/09. https://doi.org/10.4028/www.scientific.net/AMM.7-8.101

Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. / Beltrán-Fernández, J. A.; Hernández-Gómez, L. H.; Rodríguez-Cañizo, R. G.; Urriolagoitia-Calderón, G.; Urriolagoitia-Sosa, G.; González-Revatú, A.; Dufoo-Olvera, M.

Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. 2007. p. 101-106 (Applied Mechanics and Materials; Vol. 7-8).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The main results of a static analysis with a finite element model of the cervical section between C3 - C5 of a human spine are reported. In this case, it is assumed that the element C4 is completely damaged and has to be replaced. Therefore, a bone graft was installed between the anterior side of C3 and C5. Besides, a cervical plate of 55 mm. was fixed at the same side with 4 expansive screws. The resultant stresses caused by compression loads were analyzed and the displacements between the graft and adjacent vertebrae were calculated. Three loading conditions were applied: 80 N, 637.5 N and 6374.5 N. The first one corresponds to the head weight. In the second case, it is assumed that the average patient weight is supported by those vertebrae, while in the last one; the compression load failure is applied on the vertebrae. Results show that displacements were lower than 3 mm between the graft and the adjacent vertebrae. In accordance with the concept of spine stability after Müller [1], the arrangement is a stable one. Another advantage is that no wires are used in this surgical technique. Two more issues should be noticed. There is no risk that the plate may be broken and the geometry of the bone graft allows bone regeneration. These results are on line with those observed in preliminary experimental tests with porcine vertebrae.

AB - The main results of a static analysis with a finite element model of the cervical section between C3 - C5 of a human spine are reported. In this case, it is assumed that the element C4 is completely damaged and has to be replaced. Therefore, a bone graft was installed between the anterior side of C3 and C5. Besides, a cervical plate of 55 mm. was fixed at the same side with 4 expansive screws. The resultant stresses caused by compression loads were analyzed and the displacements between the graft and adjacent vertebrae were calculated. Three loading conditions were applied: 80 N, 637.5 N and 6374.5 N. The first one corresponds to the head weight. In the second case, it is assumed that the average patient weight is supported by those vertebrae, while in the last one; the compression load failure is applied on the vertebrae. Results show that displacements were lower than 3 mm between the graft and the adjacent vertebrae. In accordance with the concept of spine stability after Müller [1], the arrangement is a stable one. Another advantage is that no wires are used in this surgical technique. Two more issues should be noticed. There is no risk that the plate may be broken and the geometry of the bone graft allows bone regeneration. These results are on line with those observed in preliminary experimental tests with porcine vertebrae.

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Beltrán-Fernández JA, Hernández-Gómez LH, Rodríguez-Cañizo RG, Urriolagoitia-Calderón G, Urriolagoitia-Sosa G, González-Revatú A et al. Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. In Mechanical behavior of a calcium phosphate ceramic bone graft used in the rehabilitation of a C4 human vertebra. 2007. p. 101-106. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.7-8.101