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Related Experiment Videos

Hip arthrodesis with the dynamic hip screw.

Marcus J K Bankes1, Jon M H Simmons, Anthony Catterall

  • 1Department of Pediatric Orthopaedics, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, United Kingdom. marcus@bankes.org.uk

Journal of Pediatric Orthopedics
|December 18, 2001
PubMed
Summary

Hip arthrodesis using the Dynamic Hip Screw (DHS) achieved bony union in 78% of patients. This surgical technique preserves abductor function, aiding future hip replacement if needed.

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Area of Science:

  • Orthopedic Surgery
  • Skeletal Reconstruction

Background:

  • End-stage hip degeneration necessitates joint stabilization or replacement.
  • Hip arthrodesis offers a joint-preserving alternative in select patient populations.
  • Previous methods for hip arthrodesis have limitations regarding abductor mechanism preservation.

Purpose of the Study:

  • To evaluate the efficacy and outcomes of unilateral hip arthrodesis using the AO Dynamic Hip Screw (DHS).
  • To assess the union rates and complications associated with DHS fixation in hip arthrodesis.
  • To determine if this technique facilitates future conversion to total hip arthroplasty.

Main Methods:

  • A series of 10 patients with end-stage hip degeneration underwent unilateral hip arthrodesis.
  • Surgery was performed in the supine position via a Watson-Jones approach.

Related Experiment Videos

  • Fixation was achieved using the AO Dynamic Hip Screw (DHS) and patients were mobilized in a hip spica.

    • Main Results:

    • Bony union was achieved in 78% (7/9) of patients after an average of 17 weeks.
    • One patient developed a painful nonunion, later converted to total hip arthroplasty.
    • One patient achieved a painless pseudarthrosis without further intervention.

    Conclusions:

    • The AO Dynamic Hip Screw (DHS) provides satisfactory stabilization for hip arthrodesis when combined with a hip spica.
    • This arthrodesis technique preserves the abductor mechanism, potentially simplifying future total hip arthroplasty conversion.
    • Hip arthrodesis with DHS is a viable option for young patients with end-stage hip degeneration.