Use of injectable calcium-phosphate cement for the fixation of titanium implants: an experimental study in goats.
Publication year
2003Source
Journal of Biomedical Materials Research, 66B, 1, (2003), pp. 447-56ISSN
Publication type
Article / Letter to editor

Display more detailsDisplay less details
Organization
Periodontology and Biomaterials
Journal title
Journal of Biomedical Materials Research
Volume
vol. 66B
Issue
iss. 1
Page start
p. 447
Page end
p. 56
Subject
UMCN 4.3: Tissue engineering and reconstructive surgeryAbstract
This in vivo study evaluated the fixation of two types of titanium implants with the use of an injectable calcium-phosphate (CaP) cement. The cement was either used to create a cement mantle (Type A implant) or as an additive to press-fit placed titanium plasma sprayed implants (Type B implant). The implants were placed in trabecular bone of the medial femoral condyle of goats and left in place for 2 and 10 weeks. Mechanical evaluation of the implant fixation was done by torque testing. This showed that for the Type A implants the calcium-phosphate cement's performance was significantly inferior (P < 0.05) to that of polymethylmethacrylate cement fixation. For the two-week Type B implants a significant increase (P < 0.05) in failure load was found for calcium-phosphate cemented implants compared with just press-fitted Type B implants. Histological evaluation revealed that for Type A implants, failure during torque testing occurred at the implant-cement interface. In contrast, for Type B implants, failure occurred in the bone-implant interface for press-fit-placed devices and in the cement layer for CaP-cemented devices. Further, the CaP cement was found to be overgrown with new formed bone already after 2 weeks of implantation. The cement showed resorption due to regular bone remodeling. On the basis of these observations, it was concluded that the use of injectable CaP cement might facilitate earlier loading of press-fit inserted titanium implants. Nevertheless, the results have to be confirmed in dynamical mechanical as well as loaded in vivo studies.
This item appears in the following Collection(s)
- Academic publications [227942]
- Faculty of Medical Sciences [86237]
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.