The attachment of hydroxylapatite coated polysulfone to bone

Autor:	H.L. Scalzo, John R. Parsons, M. C. Zimmerman
Rok vydání:	1990
Předmět:	Materials science Composite number General Engineering General Medicine engineering.material Hydroxylapatite Attachment strength Smooth surface chemistry.chemical_compound Coating chemistry Rough surface engineering Implant Polysulfone Composite material
Zdroj:	Journal of Applied Biomaterials. 1:295-305
ISSN:	1549-9316 1045-4861
Popis:	Two types of hydroxylapatite (HA) surface coatings were tested as a means for bone attachment to polysulfone implants. The first coating was a roughened surface that was created by imbedding particulate HA in a polysulfone (PS) rod. The second surface was a smooth surface where HA particles were imbedded in the PS rod and the surface of the composite machined smooth. The smooth surface permitted only bonding of bone to exposed HA: whereas, the rough surface permittted mechanical interdigitation and bone bonding to HA. Specimens were implanted transcortically in the distal femurs of 12 rabbits, and groups of 4 were sacrificed at 4, 12, and 26 weeks. The attachment strength between bone and the HA/PS implants was determined via a push-out test. The results showed a statistically significant increase in push-out force for the rough surfaced implant when compared to the smooth surfaced implant at each time period. Histological analysis of samples from the in vivo study showed what appeared to be direct bone attachment on both the rough and smooth HA/PS implants.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa39101ebb6562063ba33d8bb44a2f9f https://doi.org/10.1002/jab.770010405 Zobrazit plný text záznamu Plný text