title: Histologic findings at 14 and 18 years after cemented total hip arthroplasty with interface bioactive bone cement technique.
abstract: To augment cement-bone bonding in total hip arthroplasty, we interposed hydroxyapatite (HA) granules at the interface. We report the histologic findings of 2 cases 14 and 18 years after cemented total hip arthroplasty with this technique. We found that a thick bony layer was observed where rich layers of HA granules existed. In areas without HA granules, the trabeculae did not form a thick bony layer. These bony layers around HA granules were observed at the interface of non-weight-bearing and weight-bearing areas in 2 acetabula after long-term follow-up.
authors.affiliation: H. Oonishi Memorial Joint Replacement Institute, Tominaga Hospital, Osaka, Japan.
authors.forename: Sok Chol
authors.initials: SC
authors.lastname: Kim
authors.forename: Hirotsugu
authors.initials: H
authors.lastname: Ohashi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Oonishi
authors.forename: Hironobu
authors.initials: H
authors.lastname: Oonishi
mesh_terms: D000077:Acetabulum / Q000378:metabolism / Q000473:pathology* / Q000503:physiopathology; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D001843:Bone Cements; D017886:Durapatite / Q000378:metabolism; D005260:Female; D006801:Humans; D008875:Middle Aged; D010024:Osteoporosis / Q000175:diagnosis / Q000473:pathology / Q000503:physiopathology; D013997:Time Factors; D016474:Weight-Bearing / Q000502:physiology
chemical_list: D001843:Bone Cements; D017886:Durapatite