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[A revision prosthesis for the hip joint].

H Wagner1

  • 1Orthopädische Klinik Wichernhaus Rummelsberg, Schwarzenbruck/Nürnberg.

Der Orthopade
|September 1, 1989
PubMed
Summary
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Revision hip prostheses can stabilize femurs and acetabulums, promoting bone regeneration. This cementless approach addresses bone loss from loosened hip implants, improving outcomes.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Regenerative Medicine

Context:

  • Loosening of total hip prostheses often leads to significant bone resorption and defects.
  • Existing revision techniques may not adequately address extensive bony defects and implant instability.

Purpose:

  • To present a novel cementless revision prosthesis for the femur and acetabulum.
  • To evaluate the efficacy of this prosthesis in bridging damaged bone and promoting bony regeneration.

Summary:

  • A cementless revision prosthesis for the femur is implanted in the distal marrow cavity, bridging the damaged prosthesis bed and stabilizing the femur.
  • This technique promotes vigorous bony regeneration, compensating for bone substance loss.
  • A cementless revision prosthesis for the acetabulum allows for additional fixation with screws and onlay grafting, even in severely damaged cases.

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Impact:

  • Facilitates successful revision hip arthroplasty in cases with extensive bone loss.
  • Achieves good functional results and bone recovery in complex acetabular reconstructions.
  • Offers a viable solution for patients with failed hip implants and significant bone defects.