title: A study of the mechanical and biological behavior of bioceramic hip arthroplasty followed-up after more than 10 years.
abstract: The authors report the results obtained in three experiments conducted on hip arthroplasty with ceramic-ceramic coupling and the evaluation of clinical follow-ups carried out on cemented bioceramic arthroplasty more than 10 years after surgery. A first test consisted in the "in vivo" study of alumina powder injected in the joints of four pigs with the purpose of verifying the biocompatibility of the compound. A second test involved the experimental evaluation of "in vitro" wear of the alumina as compared to other types of coupling, and confirmed the very low tendency of wear in alumina. A third spectroscopic study conducted using a Raman laser demonstrated the absolute biostability of the surface of bioceramic material. A retrospective clinical study was conducted in order to verify laboratory data in 83 cemented bioceramic arthroplasties followed-up more than 10 years after surgery and of which 92% obtained good clinical results.
authors.affiliation: IV Divisione Istituto Ortopedico Rizzoli, Bologna.
authors.forename: G
authors.initials: G
authors.lastname: Gualtieri
authors.forename: M
authors.initials: M
authors.lastname: Nigrisoli
authors.forename: D
authors.initials: D
authors.lastname: Dallari
authors.forename: L
authors.initials: L
authors.lastname: Catamo
authors.forename: I
authors.initials: I
authors.lastname: Gualtieri
mesh_terms: D000328:Adult; D000368:Aged; D000537:Aluminum Oxide / Q000009:adverse effects; D000818:Animals; D001696:Biomechanical Phenomena; D001843:Bone Cements; D002516:Ceramics / Q000009:adverse effects; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000295:instrumentation* / Q000706:statistics & numerical data; D006801:Humans; D007596:Joints / Q000187:drug effects; D007834:Lasers; D008297:Male; D008422:Materials Testing / Q000379:methods / Q000706:statistics & numerical data; D008875:Middle Aged; D011475:Prosthesis Failure; D012189:Retrospective Studies; D013059:Spectrum Analysis, Raman; D013552:Swine
chemical_list: D001843:Bone Cements; D000537:Aluminum Oxide