TITLE

Five-Year Comparison of Oxidized Zirconium and Cobalt-Chromium Femoral Components in Total Knee Arthroplasty

AUTHOR(S)
Hui, Catherine; Salmon, Lucy; Maeno, Shinichi; Roe, Justin; Walsh, William; Pinczewski, Leo
PUB. DATE
April 2011
SOURCE
Journal of Bone & Joint Surgery, American Volume;4/6/2011, Vol. 93-A Issue 7, p624
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background: In vitro analysis has shown that oxidized zirconium on ultra-high molecular weight polyethylene has better wear properties than cobalt-chromium on ultra-high molecular weight polyethylene. The purpose of this study was to determine if oxidized zirconium femoral components performed better than cobalt-chromium in vivo and if the use of oxidized zirconium components had clinical adverse effects. Methods:. Forty consecutive patients (eighty knees) underwent simultaneous bilateral cruciate-retaining total knee arthroplasty for primary osteoarthritis from January 2002 to December 2003. For each patient, the knees were randomized to receive the oxidized zirconium femoral component, with the contralateral knee receiving the cobalt-chromium component. Outcome measures included the Western Ontario and McMaster Universities Osteoarthritis Index, Knee Injury and Osteoarthritis Outcome Score, Knee Society score, and British Orthopaedic Association patient satisfaction scale. Radiographic outcomes include the Knee Society total knee arthroplasty roentgenographic evaluation and scoring system and measurement of radiographic wear. Patients and assessors were blinded to the treatment groups and results. Results: There were no significant differences in clinical, subjective, and radiographic outcomes between the two implants at five days, six weeks, and one, two, or five years postoperatively. At five years following surgery, 38% of the patients preferred the cobalt-chromium knee compared with 18% who preferred the oxidized zirconium knee (p = 0.02) and 44% had no preference. Conclusions: Five-year outcomes after total knee arthroplasty with oxidized zirconium and cobalt-chromium femoral components showed no significant differences in clinical, subjective, and radiographic outcomes. Patients had no preference or preferred the cobalt-chromium prosthesis to the oxidized zirconium prosthesis at the time of the five-year follow-up. There were no adverse effects associated with the use of oxidized zirconium femoral implants.
ACCESSION #
60253958

 

Related Articles

  • Klinischer Behandlungspfad zur Implantation einer Oberflächenknieendoprothese (EGON). Kirschner, S.; Lützner, J.; Meier, V.; Günther, K. P.; Krummenauer, F. // Der Orthopäde;Sep2010, Vol. 39 Issue 9, p860 

    Purpose: The effects of the introduction of a clinical pathway and enhanced patient information on patients' satisfaction were investigated in the current study. Material and methods: In a prospective cohort study patients were systematically interviewed about the preparation and the clinical...

  • Implant Grows With Leg.  // Popular Mechanics;Nov2000, Vol. 177 Issue 11, p28 

    Reports that Austrian surgeons have created a knee implant that extends as the patient grows.

  • Fixation enhanced using pulsed lavage with cemented TKA, porous tantalum implants.  // Orthopaedics Today Europe;Nov/Dec2011, Vol. 14 Issue 6, p1 

    The article discusses studies presented at the 12th EFORT Congress 2011 which revealed that total joint replacement fixation can be enhanced using pulsed lavage with cemented total knee arthroplasty (TKA) or porous tantalum implants.

  • Product briefs.  // Biomedical Business & Technology;Mar2010, Vol. 33 Issue 3, p23 

    The article reports that Leisure Yu, an orthopedic surgeon at Loma Linda University Medical Center in California, is performing surgery with ConforMIS' iUni and iDuo unicompartmental and bicompartmental knee resurfacing implants.

  • RAPID POLYETHYLENE FAILURE OF UNICONDYLAR TIBIAL COMPONENTS STERILIZED WITH GAMMA IRRADIATION IN AIR AND IMPLANTED AFTER A LONG SHELF LIFE. McGovern, Thomas F.; Ammeen, Deborah J.; Engh, Gerard A.; Collier, John P.; Currier, Barbara H. // Journal of Bone & Joint Surgery, American Volume;Jun2002, Vol. 84-A Issue 6, p901 

    Background: The mechanical toughness of polyethylene that has been sterilized by gamma irradiation in air decreases after a long shelf life. The purpose of the present study is to report the high failure rate after unicondylar knee replacements performed with polyethylene bearings that had been...

  • Térdízületi endoprotézis térbeli migrációja egy szeptikus lazulás esetében Radiosztereometriai vizsgálat. MARIANNA, KISS-POLAUF; ÁRPÁD, ILLYÉS; BÁLINT, HAVASI; Rita M., KISS; JENŐ, KISS // Magyar Traumatológia, Ortopédia, Kézsebészet, Plasztikai Seb;2013, Vol. 56 Issue 3, p241 

    The authors perform radiostereometric analysis in the last years to investigate the migration of total knee implants. In the following article they demonstrate a case of a septic implant loosening with radiostereometric analysis. They state that with radiostereometry early loosening signs can be...

  • Implant Design Influences Tibial Post Wear Damage in Posterior-stabilized Knees. Dolan, Mark M.; Nguyen, Joseph T.; Wright, Timothy M.; Haas, Steven B.; Kelly, Natalie H. // Clinical Orthopaedics & Related Research;Jan2011, Vol. 469 Issue 1, p160 

    Background: The tibial post in posterior-stabilized total knees is a potential source of polyethylene wear debris, but the relationship between the shape and location of the tibial post in relation to the tibiofemoral bearing surfaces and the subsequent wear damage patterns remains unknown....

  • Range of motion, knee scores comparable in high flexion and standard TKA designs.  // Orthopedics Today;Jul2010, Vol. 30 Issue 7, p24 

    The article deals with a study comparing a high flexion and a standard design knee implant presented by Dr. Myung Chu Lee at the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) Congress 2010 held in Oslo, Norway from June 9 to 12, 2010.

  • New generation of cementless implants show promise for tibial fixation in TKR. Kronemyer, Bob // Orthopedics Today;Jul2010, Vol. 30 Issue 7, p27 

    The article focuses on a study about using ultraporous metal ingrowth materials to produce more durable fixation of a knee implant to the bone held by Dr. Matthew J. Kraay of Case Western Reserve University School of Medicine.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics