Measurment of Strain Generated Potential Near Bone and Implant Interface for Assessment of Osseointegration

Abstract:

Article Preview

In this study, a minimally invasive assessment using bone strain generated potential (SGP) was developed to examine the amount of osseointegration (OI) at bone-implant interface. SGP is generated by interstitial fluid flow in porous bone structure. Four experimental white New Zealand rabbits underwent pure titanium implant insertion surgery to tibia after amputation. After surgery, two animals were kept in small cages with minimal movement (Group 1). In contrast, the other rabbits were kept in a large cage that was large enough for jumping and walking (Group 2). At the end of the 5 weeks, all experimental animals were euthanized and the amputated tibia-implants were harvested. Then, a quasi-static force was applied to a bone site near the bone-implant interface for each tibia-implant specimen. Also, SGPs were measured near the interface using needle or probe electrodes. After the measurements, digital radiographs were taken to check the amount of OI for the interfaces. Full OI was observed for animals in Group 1. However, incomplete OI was found for animals in Group 2. Also, significant difference was found for mean SGP values between Group 1 and 2. The results could imply that SGP could be used as a minimally invasive assessment method to check the OI at the bone-implant interface.

Info:

Periodical:

Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

Pages:

1082-1085

DOI:

10.4028/www.scientific.net/KEM.321-323.1082

Citation:

J. H. Hong et al., "Measurment of Strain Generated Potential Near Bone and Implant Interface for Assessment of Osseointegration", Key Engineering Materials, Vols. 321-323, pp. 1082-1085, 2006

Online since:

October 2006

Export:

Price:

$35.00

[1] S.R. Pollack, in: Bone Mechanics Handbook, 2 nd Edition (CRC Press, Boca Raton, 2001).

[2] C.A. Bassett and R.O. Becker: Generation of Electric Potentials by Bone in Response to Mechanical Stress Science Vol. 137 (1962), pp.1063-1064.

[3] R.B. Borgens: Endogenous Ionic Currents Traverse Intact and Damaged Bone Science Vol. 225 (1984), pp.478-482.

[4] T.P. Harrigan and J.J. Hamilton: Bone Strain Sensation via Transmembrane Potential Changes in Surface Osteoblasts: Loading Rate and Microstructural Implication J. Biomech. Vol. 26 (1993), pp.183-200.

[5] L.A. MacGinitie, G.D. Stanley, W.A. Bieber, and D.D. Wu: Bone Streaming Potentials and Currents Depend on an Anatomical Structure and Loading Orientation J. Biomech. Vol. 30 (1997), pp.1133-1139.

DOI: 10.1016/s0021-9290(97)85605-9

[6] B.R. Beck, Y-X. Qin, K.J. McLeod, and M.W. Otter: On the Relationship between Streaming Potential and Strain in an in vivo Bone Preparation Calcif. Tissue Int. Vol. 71 (2002), pp.335-343.

DOI: 10.1007/s002230020050

[7] W. Y Gu, X.G. Mao, B.A. Rawlins, J.C. Iatridis, R.J. Foster, D.N. Sun, M. Weidenbaum, and V.C. Mow: Streaming Potential of Human Lumbar Annulus Fibrosus is Anisotropic and Affected by Disk Degeneration J. Biomech. Vol. 32 (1999), pp.1177-1182.

[8] S.C. Cowin: Bone Poroelasticity J. Biomech. Vol. 32 (1999), pp.217-238.

[9] J.H. Hong: Could the Intraosseous Fluid in Cancellous Bone Bear External Load Significantly within the Elastic Range? Proc. Instn. Mech. Engrs. Part H: J. Eng. Med. Vol. 218 (2004), pp.375-379.

[10] D. Pienkowski and S.R. Pollack: The Origin of Stress-Generated Potentials in Fluid-Saturated Bone J. Orthop. Res. Vol. 1 (1983), pp.30-41.

In order to see related information, you need to Login.