title: The effect of cup placement in cementless total hip arthroplasty on the wear rate of polyethylene.
abstract: There are many reports on cup placement, inclination, anteversion, and position. This article strictly defines the area of cup placement based on data from 185 healthy hip centers and Ranawat's triangle. Linear wear rate (LWR) was measured in 55 total hip arthroplasty (THA) cases and categorized as low or high. The relationships between these categories and cup size, inclination, anteversion, position, age, follow-up period, bone graft, cup osteolysis, and stem osteolysis were investigated.
authors.affiliation: Department of Reconstructive and Transplant Medicine, Division of Orthopedic Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Ito
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Tokunaga
authors.forename: Naoto
authors.initials: N
authors.lastname: Endo
authors.forename: Yuhichi
authors.initials: Y
authors.lastname: Takano
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Yuasa
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging* / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D002484:Cementation; D019544:Equipment Failure Analysis; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D020959:Polyethylene / Q000737:chemistry*; D011475:Prosthesis Failure; D011859:Radiography
chemical_list: D020959:Polyethylene