Influence of Synthetic Bone Substitutes on the Anchorage Behavior of Open-Porous Acetabular Cup.
Ti6Al4V
bone substitute material
press-fit
primary stability
selective laser melting
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
30 Mar 2019
30 Mar 2019
Historique:
received:
11
03
2019
revised:
25
03
2019
accepted:
26
03
2019
entrez:
3
4
2019
pubmed:
3
4
2019
medline:
3
4
2019
Statut:
epublish
Résumé
The development in implants such as acetabular cups using additive manufacturing techniques is playing an increasingly important role in the healthcare industry. This study compared the primary stability of four selectively laser-melted press-fit cups (Ti6Al4V) with open-porous, load-bearing structural elements on the surface. The aim was to assess whether the material of the artificial bone stock affects the primary stability of the acetabular cup. The surface structures consist of repeated open-porous, load-bearing elements orthogonal to the acetabular surface. Experimental pull-out and lever-out tests were performed on exact-fit and press-fit cups to evaluate the primary stability of the cups in different synthetic bone substitutes. The acetabular components were placed in three different commercially available synthetic materials (ROHACELL-IGF 110, SikaBlock M330, Sawbones Solid Rigid). Results & conclusions: Within the scope of the study, it was possible to show the differences in fixation strength between the tested acetabular cups depending on their design, the structural elements used, and the different bone substitute material. In addition, functional correlations could be found which provide a qualitative reference to the material density of the bone stock and the press-fit volume of the acetabular cups.
Sections du résumé
BACKGROUND
BACKGROUND
The development in implants such as acetabular cups using additive manufacturing techniques is playing an increasingly important role in the healthcare industry.
METHOD
METHODS
This study compared the primary stability of four selectively laser-melted press-fit cups (Ti6Al4V) with open-porous, load-bearing structural elements on the surface. The aim was to assess whether the material of the artificial bone stock affects the primary stability of the acetabular cup. The surface structures consist of repeated open-porous, load-bearing elements orthogonal to the acetabular surface. Experimental pull-out and lever-out tests were performed on exact-fit and press-fit cups to evaluate the primary stability of the cups in different synthetic bone substitutes. The acetabular components were placed in three different commercially available synthetic materials (ROHACELL-IGF 110, SikaBlock M330, Sawbones Solid Rigid). Results & conclusions: Within the scope of the study, it was possible to show the differences in fixation strength between the tested acetabular cups depending on their design, the structural elements used, and the different bone substitute material. In addition, functional correlations could be found which provide a qualitative reference to the material density of the bone stock and the press-fit volume of the acetabular cups.
Identifiants
pubmed: 30935040
pii: ma12071052
doi: 10.3390/ma12071052
pmc: PMC6479851
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Federal Ministry of Education and Research
ID : 03FH005IX5
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