No superior performance of hydroxyapatite-coated acetabular cups over porous-coated cups.
Background and purpose Hydroxyapatite (HA) coating is believed to improve bone-implant ingrowth and long-term survival of prostheses. Recent studies, however, have challenged this view. Furthermore, HA particles may produce third-body wear and initiate aseptic loosening of implants. We report the pe...
| Publicado en: | Acta Orthopaedica Vol. 84; no. 6; pp. 544 - 549 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts randomized controlled trial Journal Article |
| Publicado: |
Medical Journals Sweden AB
Dec2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104167583&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104167583 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17453674 1BVL jtl: Acta Orthopaedica issn: 17453674 maglogo: N pubinfo: dt: Dec2013 vid: 84 iid: 6 pid: 59195 pub: Medical Journals Sweden AB artinfo: ui: 104167583 92660524 10.3109/17453674.2013.854665 NLM24171680 PMC3851667 104167583 ppf: 544 ppct: 5 formats: fmt: @attributes: type: P tig: atl: No superior performance of hydroxyapatite-coated acetabular cups over porous-coated cups. aug: au: Valancius, Kestutis Søballe, Kjeld Nielsen, Poul T Laursen, Mogens B affil: Farsoe Clinic of Hip and Knee Arthroplasty, Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg sug: subj: Arthroplasty, Replacement, Hip Equipment and Supplies Prostheses and Implants Biocompatible Materials Quality Assessment Treatment Outcomes Human Prospective Studies Randomized Controlled Trials Absorptiometry, Photon Clinical Assessment Tools Female Male Null Hypothesis Analysis of Variance Descriptive Statistics Kaplan-Meier Estimator Survival Analysis Middle Age Adult Aged Aged, 80 and Over Repeated Measures Middle Aged: 45-64 years Adult: 19-44 years Aged: 65+ years Aged, 80 & over Female Male ab: Background and purpose Hydroxyapatite (HA) coating is believed to improve bone-implant ingrowth and long-term survival of prostheses. Recent studies, however, have challenged this view. Furthermore, HA particles may produce third-body wear and initiate aseptic loosening of implants. We report the performance of HA- and porous-coated acetabular cups in a prospective randomized trial. Methods This was an 8-year follow-up study of our previously published prospective randomized study to compare clinical outcomes, survival, periprosthetic bone mineral density, migration, and wear rates of HA- and porous-coated acetabular cups. Dual X-ray absorptiometry (DXA) and Ein Bild Roentgen Analyse (EBRA) measurements were used. 100 patients who underwent unilateral cementless total hip arthroplasty were randomized to either porous-coated cups or HA-coated cups. Patients were examined preoperatively and at 3, 6, and 9 months, and also 1, 3, and 8 years after surgery. 81 patients were available for 8-year follow-up, 40 with porous-coated cups and 41 with HA-coated cups. Results Age, sex, bone mineral density, and clinical results (Harris hip score) were similar in the 2 groups. The survival, wear, and migration patterns of the cups were also similar in both groups. The results of periprosthetic bone mineral density scans in region of interest 2 was in favor of the porous-coated cups, but there were no differences between the 2 groups in all the remaining regions of interest. Interpretation HA coating had no statistically significant effect on clinical results, survival, wear, or migration at the 8-year follow-up. pubtype: Academic Journal doctype: pictorial research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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