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Related Experiment Videos

Bipolar socket in protrusio acetabuli. 3-6-year study

M G Wilson1, R D Scott

  • 1Harvard Medical School, Boston, MA.

The Journal of Arthroplasty
|August 1, 1993
PubMed
Summary
This summary is machine-generated.

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Bipolar hip hemiarthroplasty with bone grafting effectively treats acetabular protrusio, relieving pain and improving function. This surgical approach restores acetabular bone stock and offers good long-term results.

Area of Science:

  • Orthopedic Surgery
  • Reconstructive Surgery
  • Hip Arthroplasty

Background:

  • Protrusio acetabuli is a complex hip deformity requiring surgical intervention.
  • Traditional treatments may have limitations in addressing medial wall defects and restoring hip biomechanics.

Purpose of the Study:

  • To evaluate the efficacy of bipolar socket hemiarthroplasty combined with bone grafting for protrusio acetabuli.
  • To assess pain relief, functional outcomes, and radiographic results following the surgical procedure.

Main Methods:

  • Twenty-two hips in 14 patients with protrusio acetabuli underwent bipolar socket hemiarthroplasty.
  • Crushed cancellous bone grafting was utilized for medial wall defects, with attention to socket rim contact.
  • Outcomes were evaluated at a mean follow-up of 54 months using clinical and radiographic assessments.

Related Experiment Videos

Main Results:

  • No patient experienced groin pain post-operatively; one hip had thigh pain due to a loose femoral component.
  • A satisfactory range of motion was achieved in all but one patient, with an average Harris hip score increase of 40 points.
  • Radiographically, acetabuli were repositioned inferolaterally, with minimal to no socket migration (< 3 mm) in 17 out of 22 hips.

Conclusions:

  • Bipolar socket hemiarthroplasty with crushed cancellous grafting is a viable surgical option for protrusio acetabuli.
  • The procedure provides reliable pain relief, functional improvement, and restoration of acetabular bone stock.
  • This technique demonstrates acceptable outcomes and addresses the challenges of acetabular bone defects in protrusio deformity.