Osteointegrated porous-coated titanium implants.
The study deals with the bone-prosthesis interface using an in vivo experimental animal model in relation to loading and walking on the prosthetized hip, studied by force plate analysis. The interface is studied from a histological and morphometric point of view by means of a LECO 2001 system. Results show that titanium favors osteointegration according to the criteria of Branemark even in conditions of physiological loading; bone ingrowth (that cannot be considered a true process of osteointegration) was 27.6%; furthermore, we quantified two models of periprosthetic bone growth in an osteointegrative sense: total bone bonding (27.4%) and core bone bonding (bone that grows in direct contact with the prosthesis) that was 16.1%. Finally, osteointegration tends to be greater where contact between the bone and the prosthetic is closer, regardless of the type of prosthetic coating.
Antonelli
L
L
Divisione di Ortopedia e Traumatologia, Ospedale Multizonale V. Fazzi, Lecce.
Maistrelli
G L
GL
Fornasier
V
V
Iacomella
D
D
Antonelli
A
A
D000818:Animals; D001846:Bone Development; D004285:Dogs; D006622:Hip Prosthesis / Q000295:instrumentation / Q000379:methods*; D014025:Titanium; D016138:Walking
D014025:Titanium