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Hybrid total hip arthroplasty.

W H Harris1, W J Maloney

  • 1Orthopaedic Biomechanics Laboratory, Massachusetts General Hospital, Boston 02114.

Clinical Orthopaedics and Related Research
|December 1, 1989
PubMed
Summary
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This study found that hybrid total hip arthroplasty, using cemented femoral and cementless acetabular components, yields excellent outcomes with minimal pain and no component revisions. This approach demonstrates successful long-term hip replacement results.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Engineering

Background:

  • Total hip arthroplasty (THA) is a common procedure for hip joint dysfunction.
  • Hybrid THA, combining cemented and cementless components, aims to optimize fixation and longevity.
  • Evaluating the long-term efficacy of hybrid THA is crucial for patient outcomes.

Purpose of the Study:

  • To assess the clinical and radiographic outcomes of hybrid total hip arthroplasty.
  • To evaluate the effectiveness of a hybrid fixation strategy in primary THA.
  • To determine the rate of complications and revisions in this patient cohort.

Main Methods:

  • A retrospective study of 126 primary total hip arthroplasties.
  • Utilized a hybrid fixation: cemented femoral component and cementless acetabular component.

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  • Minimum follow-up of two years (mean 42 months), with clinical and radiographic assessment.

    • Main Results:

    • Excellent overall results with a mean Harris hip score of 93.
    • 94% of patients reported no or slight postoperative pain; none reported moderate/severe pain.
    • No femoral or acetabular component revisions were required; one acetabular component showed migration without clinical significance.

    Conclusions:

    • Selective use of cemented and cementless fixation in hybrid THA provides excellent outcomes.
    • This hybrid approach demonstrates successful results for hip arthroplasty over five and a half years.
    • Hybrid THA is a viable option for managing conditions like osteoarthritis and congenital hip dislocations.