title: A randomized trial comparing acetabular component fixation of two porous ingrowth surfaces using RSA.
abstract: Several new porous ingrowth surfaces for acetabular component fixation have recently been developed. The purpose of this study was to compare the in vivo fixation achieved by two different porosity ingrowth surfaces using radiostereometric analysis (RSA). Sixty-two patients undergoing primary total hip arthroplasty (THA) were randomized to receive a cementless acetabular component with either a 61% high porosity asymmetric titanium porous surface (StikTite, Smith and Nephew, TN, USA) or a 45% low porosity sintered bead porous surface (Roughcoat, Smith and Nephew, TN, USA). RSA and clinical follow-up examinations were done post-operatively, 6-weeks, 3-months, 6-months, 1-year and 2-years. Both the high porosity StikTite and lower porosity Roughcoat surfaces provided excellent biologic fixation.
authors: Imaging Research Laboratories, Robarts Research Institute, London, ON, Canada; Department of Surgery (Orthopaedics), Western University, London, ON, Canada.
authors: Douglas D R
authors: DD
authors: Naudie
authors: Lyndsay
authors: L
authors: Somerville
authors: Abigail
authors: A
authors: Korczak
authors: Xunhua
authors: X
authors: Yuan
authors: Richard W
authors: RW
authors: McCalden
authors: David
authors: D
authors: Holdsworth
authors: Robert B
authors: RB
authors: Bourne
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging*; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001863:Bone Screws; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery; D006622:Hip Prosthesis / Q000145:classification*; D006801:Humans; D008297:Male; D016062:Porosity; D011446:Prospective Studies; D011474:Prosthesis Design / Q000145:classification*; D059869:Radiostereometric Analysis; D013997:Time Factors; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D014025:Titanium
keywords: acetabular component fixation; porous ingrowth surface; radiostereometric analysis