Beckmann, J; Ferguson, SJ; Gebauer, M; Luering, C; Gasser, B; Heini, P (2007). Femeroplasty - Augmentation of the proximal femur with a composite bone cement - feasibility, biomechanical properties and osteosynthesis potential. Medical engineering & physics, 29(7), pp. 755-764. Amsterdam: Elsevier 10.1016/j.medengphy.2006.08.006
Full text not available from this repository.Background: Analogous to vertebroplasty, cement-augmentation of the proximal femur ("femoroplasty") could reinforce osteoporotic bones. This study was to evaluate (i) the feasibility of femoroplasty with a composite cement (Cortoss), (ii) its influence on femoral strength by mechanical testing and (iii) the feasibility of stable osteosynthesis of the augmented fractured bones.
Methods: Nine human cadaveric femora were augmented with a composite bone cement, the surface heat generation monitored, and then tested biomechanically against their native contralateral control to determine fracture strength. Subsequently, thirteen reinforced and fractured femora were osteosynthetized by different implants and tested against their osteosynthetisized, non-augmented contralateral control.
Findings: Cement could be injected easily, with a moderate temperature rise. A positive correlation between BMD and fracture load and a significant increase in fracture load (+43%) of the augmented femora compared to their native controls (6324 N and 4430 N, respectively) as well as a significant increase in energy-to-failure (+187%, 86 N m and 30 N m, respectively) was found. Osteosynthesis was possible in cement-augmented femora. Osteosynthetisized femora showed equivalent strength to the intact controls.
Interpretation: Augmentation of the proximal femur with composite bone cement could be of use in prophylaxis of fractures in osteoporotic femurs. Osteosynthesis of the fractured augmented bones is a challenging procedure but has a good chance to restore strength.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued] 04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery |
UniBE Contributor: |
Ferguson, Stephen John, Heini, Paul Ferdinand |
ISSN: |
1350-4533 |
ISBN: |
755-764 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Factscience Import |
Date Deposited: |
04 Oct 2013 14:57 |
Last Modified: |
05 Dec 2022 14:17 |
Publisher DOI: |
10.1016/j.medengphy.2006.08.006 |
PubMed ID: |
17023189 |
Web of Science ID: |
000246920100004 |
URI: |
https://boris.unibe.ch/id/eprint/24178 (FactScience: 47402) |
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