Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Titanium metals form direct bonding to bone after alkali and heat treatments
Autore:
Nishiguchi, S; Kato, H; Fujita, H; Oka, M; Kim, HM; Kokubo, T; Nakamura, T;
Indirizzi:
Kyoto Univ, Fac Med, Dept Orthopaed Surg, Sakyo Ku, Kyoto 6068507, Japan Kyoto Univ Kyoto Japan 6068507 paed Surg, Sakyo Ku, Kyoto 6068507, Japan Kyoto Univ, Inst Frontier Med Sci, Sakyo Ku, Kyoto 6068507, Japan Kyoto Univ Kyoto Japan 6068507 r Med Sci, Sakyo Ku, Kyoto 6068507, Japan Kyoto Univ, Fac Engn, Dept Med Chem, Sakyo Ku, Kyoto 6068501, Japan Kyoto Univ Kyoto Japan 6068501 Med Chem, Sakyo Ku, Kyoto 6068501, Japan
Titolo Testata:
BIOMATERIALS
fascicolo: 18, volume: 22, anno: 2001,
pagine: 2525 - 2533
SICI:
0142-9612(200109)22:18<2525:TMFDBT>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLASMA-SPRAYED COATINGS; TREATED TITANIUM; APATITE LAYER; HYDROXYAPATITE; IMPLANTS; ALLOY; TI; ARTHROPLASTY; OSTEOLYSIS; INTERFACE;
Keywords:
titanium; titanium alloy; alkali and heat treatment; cementless fixation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Nishiguchi, S Kobe City Gen Hosp, Dept Orthoped Surg, Chuo Ku, Minatojimanakamchi 4-6, Kobe, Hyogo 6500046, Japan Kobe City Gen Hosp Minatojimanakamchi 4-6 Kobe Hyogo Japan 6500046
Citazione:
S. Nishiguchi et al., "Titanium metals form direct bonding to bone after alkali and heat treatments", BIOMATERIAL, 22(18), 2001, pp. 2525-2533

Abstract

In this article we evaluated the bone-bonding strengths of titanium and titanium alloy implants with and without alkali and heat treatments using theconventional canine femur push-out model. Four kinds of smooth cylindricalimplants, made of pure titanium or three titanium alloys, were prepared with and without alkali and heat treatments. The implants were inserted hemitranscortically into canine femora. The bone-bonding shear strengths of the implants were measured using push-out test. At 4 weeks all types of the alkali- and heat-treated implants showed significantly higher bonding strength(2.4-4.5 MPa) than their untreated counterparts (0.3-0.6 MPa). At 12 weeksthe bonding strengths of the treated implants showed no further increase, while those of the untreated implants had increased to 0.6-1.2 MPa. Histologically, alkali- and heat-treated implants showed direct bonding to bony tissue without intervening fibrous tissue. On the other hand, untreated implants usually had intervening fibrous tissue at the interface between bone and the implant. The early and strong bonding to bone of alkali- and heat-treated titanium and its alloys without intervening fibrous tissue may be useful in establishing cementless stable fixation of orthopedic implants. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 22:58:25