The effect of impaction and a bioceramic coating on bone ingrowth in porous titanium particles.
Background and purpose Porous titanium (Ti) particles can be impacted like cancellous allograft bone particles, and may therefore be used as bone substitute in impaction grafting. We evaluated the effect of impaction and of a thin silicated biphasic calcium phosphate coating on osteoconduction by Ti...
| Publicado en: | Acta Orthopaedica Vol. 82; no. 3; pp. 372 - 378 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Medical Journals Sweden AB
Jun2011
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104655055&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104655055 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17453674 1BVL jtl: Acta Orthopaedica issn: 17453674 maglogo: N pubinfo: dt: Jun2011 vid: 82 iid: 3 pid: 59195 pub: Medical Journals Sweden AB artinfo: ui: 104655055 62541195 10.3109/17453674.2011.579515 NLM21504310 104655055 ppf: 372 ppct: 6 formats: fmt: @attributes: type: P tig: atl: The effect of impaction and a bioceramic coating on bone ingrowth in porous titanium particles. aug: au: Walschot, Lucas H Schreurs, Barend W Verdonschot, Nico Buma, Pieter sug: subj: Bone Transplantation Methods Titanium Bone Substitutes Bone Regeneration Physiology Animal Studies Mammals Allografts Materials Testing Biocompatible Materials Tibia Surgery Microscopy Methods Descriptive Statistics Repeated Measures Analysis of Variance Friedman Test Post Hoc Analysis Particle Size Funding Source ab: Background and purpose Porous titanium (Ti) particles can be impacted like cancellous allograft bone particles, and may therefore be used as bone substitute in impaction grafting. We evaluated the effect of impaction and of a thin silicated biphasic calcium phosphate coating on osteoconduction by Ti particles. Methods The bone conduction chamber of Aspenberg was used in goats and filled with various groups of coated or uncoated small Ti particles (diameter 1.0--1.4 mm). Impacted allograft bone particles and empty chambers were used in control groups. Fluorochromes were administered at 4, 8, and 12 weeks. Maximum bone ingrowth distance was evaluated by histomorphometric analysis. Results Histology of Ti particle graft cylinders showed a dense matrix with narrow inter-particle and intra-particle pores (< 100 μμm), occluding the lumen of the bone chamber. Bone ingrowth distances gradually increased with time in all groups. Maximum bone ingrowth distance was higher in originally empty chambers than those with allograft bone particles (p == 0.01) and Ti particles (p < 0.001). Maximum bone ingrowth in allograft bone particles was higher than in all Ti groups (p ≤≤ 0.001). Impaction reduced osteoconduction and the coating partially compensated for the negative effect of impaction, but these differences were not statistically significant. No osteolytic reactions were found. Interpretation Osteoconduction in the bone conduction chamber was reduced more by the insertion of small Ti particles than by insertion of small allograft bone particles. The osteoconductive potential of porous Ti particles should be studied further with larger-sized particles, which may allow bone ingrowth after impaction through larger inter-particle pores. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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