The Journal of Arthroplasty
Volume 23, Issue 7 , Pages 949-955, October 2008

Management of Severe Bone Loss in Acetabular Revision Using a Trabecular Metal Shell

  • Xavier Flecher, MD

      Affiliations

    • Department of Orthopedic Surgery, Aix-Marseille University, Marseille, France
    • Department of Orthopedic Surgery, Sainte-Marguerite Hospital, Marseille, France
    • Corresponding Author InformationReprint requests: Xavier Flecher, MD, Department of Orthopedic Surgery, Sainte-Marguerite Hospital, 270 Bd Sainte-Marguerite, BP 29, 13274 Marseille cedex 09, France.
  • ,
  • Scott Sporer, MD

      Affiliations

    • Department of Orthopedic Surgery, Central Dupage Hospital, Winfield, Illinois
    • Department of Orthopaedic Surgery, RUSH, University Medical Center, Chicago, Illinois
  • ,
  • Wayne Paprosky, MD

      Affiliations

    • Department of Orthopedic Surgery, Central Dupage Hospital, Winfield, Illinois
    • Department of Orthopaedic Surgery, RUSH, University Medical Center, Chicago, Illinois

Received 18 April 2006; accepted 25 August 2007. published online 25 February 2008.

Abstract 

We investigated the early results of trabecular metal components in 23 acetabular revisions associated with major bone loss. The mean age was 58.2 years. According to Paprosky's classification, there were 17 type IIIA and 6 type IIIB acetabular defects. Eight chronic pelvic discontinuities were intraoperatively assessed. No additional plating or bone grafting was necessary. The mean postoperative modified Postel-Merle d'Aubigne score was 10.6 points (8-12 points). The mean postoperative position of the center of rotation was 26.3 mm vertically (15-47 mm). The mean inclination was 45.1° (20°-63°). No mechanical failure occurred at a mean follow-up of 35 months (24-50 months). Trabecular metal components appear suitable to achieve primary stability in type III acetabular defect as an alternative to bone graft and cages.

Key words: total hip arthroplasty, acetabular revision, bone defect, trabecular metal, results

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 No benefits or funds were received in support of this study.

PII: S0883-5403(07)00554-2

doi:10.1016/j.arth.2007.08.019

The Journal of Arthroplasty
Volume 23, Issue 7 , Pages 949-955, October 2008