The Journal of Arthroplasty
Volume 27, Issue 2 , Pages 305-309, February 2012

Improving Initial Acetabular Component Stability in Revision Total Hip Arthroplasty:

Calcium Phosphate Cement vs Reverse Reamed Cancellous Allograft

  • David J. Jacofsky, MD

      Affiliations

    • The Center for Orthopedic Research and Education (CORE) Institute
    • The Banner Sun Health Research Institute
    • Corresponding Author InformationReprint requests: David J. Jacofsky, MD, 3010 W Agua Fria Freeway, Suite 100, Phoenix, AZ 85027.
    • ,
  • John D. McCamley, MS

      Affiliations

    • The Banner Sun Health Research Institute
    • ,
  • Andrew M. Jaczynski, MS

      Affiliations

    • The Banner Sun Health Research Institute
    • ,
  • M. Wade Shrader, MD

      Affiliations

    • Phoenix Children's Hospital
    • ,
  • Marc C. Jacofsky, PhD

      Affiliations

    • The Center for Orthopedic Research and Education (CORE) Institute
    • The Banner Sun Health Research Institute

Received 22 October 2010; accepted 9 May 2011. published online 21 July 2011.

Abstract 

A reproducible retroacetabular defect was created bilaterally in 9 cadaver pelves. The defects were filled with either an injectable, bioresorbable, calcium phosphate cement, or reverse-reamed cancellous allograft. An uncemented acetabular shell was impacted, followed by the placement of an appropriate liner. The pelves were then sectioned, and each half was loaded in a material testing machine to simulate walking on the construct over a several week period. The cement-filled defects lasted a greater number of cycles before failure and had greater cup stability and stiffness. The use of resorbable bone void filler for retroacetabular defects shows promise in this biomechanical analysis. Long-term clinical follow-up is warranted to track osseointegration of the implant and restoration of bone stock between this and other clinically accepted surgical techniques.

Keywords: revision hip arthroplasty, retroacetabular defect, impacted allograft, calcium phosphate cement

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 The Conflict of Interest statement associated with this article can be found at doi:10.1016/j.arth.2011.05.009.

PII: S0883-5403(11)00246-4

doi:10.1016/j.arth.2011.05.009

The Journal of Arthroplasty
Volume 27, Issue 2 , Pages 305-309, February 2012

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