[Histomorphometric evaluation of bone ingrowth of porous titanium by a computer-assisted analyzing system]. / Histomorphometrische Evaluation poröser Titanprobenkörper anhand eines computergestützten Bildanalysesystems.
Biomed Tech (Berl)
; 50(12): 408-12, 2005 Dec.
Article
en De
| MEDLINE
| ID: mdl-16429945
ABSTRACT
The objective of this study was to evaluate the bone ingrowth of a new vacuum plasma sprayed titanium surface (vps-ti) in comparison to cs-titanium implants in a göttinger minipig model. Fifteen göttinger minipigs each received the two implants, vacuum plasma sprayed titanium with a porosity of 50% and a pore size of 200 microm (vps-ti) and an implant with a similar porosity but a different pore size 500 microm (cs-ti), at the proximal femur metaphysis by press-fit technique. The pigs were euthanized at three different postsurgical periods 4, 8 and 12 weeks. Each femur was harvested and qualitative (macroscopic and microscopic) and quantitative (histomorphometric) histological analysis was done on histological slides. The results indicated that there was a difference in bone ingrowth between the two implants, whereas the bone ingrowth of vps-ti was superior to cs-ti after 4 and 8 weeks healing time. 12 weeks post implantationem no statistiscal difference was evident. The pore size of 200 microm seemed superior to a pore size of 500 microm. Whether or not these effects lead to a better mechanical stability remains unanswered.
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Base de datos:
MEDLINE
Asunto principal:
Titanio
/
Interpretación de Imagen Asistida por Computador
/
Oseointegración
/
Análisis de Falla de Equipo
/
Fémur
/
Prótesis de Cadera
Tipo de estudio:
Evaluation_studies
/
Qualitative_research
Límite:
Animals
Idioma:
De
Revista:
Biomed Tech (Berl)
Año:
2005
Tipo del documento:
Article