title: The vascular network in the femoral head and neck after hip resurfacing.
abstract: The purpose of this study was to determine whether femoral neck fracture after cemented resurfacing hip arthroplasty (RHA) arises from intraosseous vascularity around the femoral head-neck junction. We implanted a replica of the femoral head component into osteoarthritic femoral heads and compared the intraosseous vascularity network between the femoral heads with and without the RHA procedure using microangiography through a retinacular artery with micro-computed tomography. Our results showed no significant difference in the vascularity around the femoral head-neck junction between the groups with and without the RHA procedure. These results suggest that deterioration of the intraosseous vascular network around the head-neck junction after RHA was not severe enough to induce complete avascularity.
authors.affiliation: Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
authors.forename: Takehito
authors.initials: T
authors.lastname: Hananouchi
authors.forename: Takashi
authors.initials: T
authors.lastname: Nishii
authors.forename: Seung Bak
authors.initials: SB
authors.lastname: Lee
authors.forename: Kenji
authors.initials: K
authors.lastname: Ohzono
authors.forename: Hideki
authors.initials: H
authors.lastname: Yoshikawa
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Sugano
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography; D019644:Arthroplasty, Replacement, Hip; D002484:Cementation; D005265:Femoral Neck Fractures / Q000209:etiology; D005270:Femur Head / Q000098:blood supply* / Q000000981:diagnostic imaging; D005272:Femur Neck / Q000098:blood supply* / Q000000981:diagnostic imaging; D006801:Humans; D008852:Microradiography; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery; D057068:Periprosthetic Fractures / Q000209:etiology