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Mechanical evaluation of potential ceramic implant materials for use in minimally invasive anterior interbody fusion
Publikationstyp
Journal Article
Date Issued
1999
Sprache
German
Author(s)
Volume
44
Issue
7-8
Start Page
206
End Page
211
Citation
Biomedical engineering 44 (7-8): 206-211 (1999)
Publisher DOI
Scopus ID
Publisher
de Gruyter
While autologous bone grafts are highly suitable for use in spinal arthrodesis, their use is also associated with problems (traumatization, complications). Ceramic bone substitute materials provide an attractive alternative for lumbar interbody spinal fusion. The aim of the present study was to investigate the mechanical properties of various types of ceramic using a specific fusion method. Ten specimens each of 7 different types of ceramic were tested using a hydraulic testing machine with two different sample holders: polyurethane foam (mechanical properties similar to cancellous bone) and aluminium. The parameters axial compression and axial torque were investigated. With the polyurethane foam holders, none of the ceramic implants failed under compression, while under axial rotation, two types of ceramic failed. With the aluminium holders, 3 ceramics showed no failure up to 25 kN under compression, while under torsion all the ceramics failed. One type of ceramic showed specific fracture properties with a higher load-bearing capacity after failure in comparison with all the other types studied.
Subjects
ALIF
Bone substitute materials
Ceramics
Fusion implants
DDC Class
570: Life Sciences, Biology
610: Medicine, Health