title: 10-year follow-up wear analysis of first-generation highly crosslinked polyethylene in primary total hip arthroplasty.
abstract: Our goal was to report a 10-year follow up of linear penetration rates for HCLPE, and to determine whether a difference exists between penetrations measured on pelvis or hip anterior-posterior radiographs. We reviewed 48 total hip arthroplasties where a first-generation HCLPE liner was used. Femoral head penetration was measured on both AP pelvis and hip radiographs. Total wear and wear rate at 10 years were 1.26 mm and 0.122 mm/y, respectively. The rate decreased significantly after the first 2-3 years, plateauing at a wear rate of 0.05 mm/y for the last 5 years. The AP hip total wear and wear rate were 1.38 mm and 0.133 mm/y respectively, while rates were 1.13 mm and 0.109 mm/y respectively for the pelvis radiographs (P<.05). We found a significant difference in measurements of linear penetration when comparing AP pelvis vs. hip radiographs with lower rates recorded using an AP pelvis.
authors.affiliation: Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, New York.
authors.forename: Nimrod
authors.initials: N
authors.lastname: Snir
authors.affiliation: Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, New York.
authors.forename: Ian D
authors.initials: ID
authors.lastname: Kaye
authors.affiliation: Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, New York.
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Klifto
authors.affiliation: Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, New York.
authors.forename: Mathew J
authors.initials: MJ
authors.lastname: Hamula
authors.affiliation: Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, New York.
authors.forename: Theodore S
authors.initials: TS
authors.lastname: Wolfson
authors.affiliation: Department of Orthopaedic Surgery, University of California Irvine Medical Center, Orange, California.
authors.forename: Ran
authors.initials: R
authors.lastname: Schwarzkopf
authors.affiliation: Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, New York.
authors.forename: Fredrick F
authors.initials: FF
authors.lastname: Jaffe
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001672:Biocompatible Materials; D003936:Diagnosis, Computer-Assisted; D019544:Equipment Failure Analysis; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint; D006801:Humans; D007592:Joint Diseases / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000000981:diagnostic imaging / Q000209:etiology; D020959:Polyethylene; D011475:Prosthesis Failure; D011859:Radiography; D012984:Software
chemical_list: D001672:Biocompatible Materials; D020959:Polyethylene
keywords: 10-year follow-up; first generation; highly cross linked polyethylene; total hip arthroplasty; wear analysis