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Related Experiment Videos

Noncemented acetabular revision arthroplasty using allograft bone.

R H Emerson1, W C Head, F M Berklacich

  • 1Presbyterian Hospital, Dallas, Texas.

Clinical Orthopaedics and Related Research
|December 1, 1989
PubMed
Summary
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For acetabular revision surgery, porous-coated titanium press-fit cups demonstrated superior outcomes compared to older designs. These press-fit components showed less migration and better bone graft healing in patients with significant bone deficiency.

Area of Science:

  • Orthopedic surgery
  • Biomaterials science

Background:

  • Acetabular revision surgery addresses failed cemented total hip arthroplasties.
  • Extensive bone deficiency is common in these cases, necessitating bone grafting.

Purpose of the Study:

  • To evaluate clinical outcomes of three acetabular components in revisions with bone grafting.
  • To compare different bone augmentation techniques for acetabular reconstruction.

Main Methods:

  • Retrospective review of 106 acetabular revisions with bone graft surgery.
  • Analysis of bipolar, truncated-cone screw-in, and porous-coated titanium press-fit acetabular components.
  • Evaluation of nonstructural morselized and segmental allografts, with or without fixation aids.

Main Results:

Related Experiment Videos

  • Bipolar and screw-in designs showed frequent migration and graft resorption, impacting clinical scores.
  • The press-fit design exhibited minimal migration, reliable graft healing, and improved clinical outcomes.
  • Nonstructural morselized allografts performed well with stable cups; segmental grafts benefited from buttress plating and screw fixation.

Conclusions:

  • Porous-coated titanium press-fit acetabular components are effective for revisions with significant bone deficiency.
  • Stable fixation and reliable bone graft incorporation are crucial for successful acetabular reconstruction.
  • Combined buttress plating and screw fixation enhance outcomes for large segmental bone grafts.