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Horizontal platform supported total hip replacement.

L Chen1, T J Claffey

  • 1Department of Orthopaedic Surgery, St. Vincent Hospital, Sydney, Australia.

Chinese Medical Journal
|March 27, 2001
PubMed
Summary
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The horizontal platform supported (HPS) prosthesis shows excellent long-term results in cementless total hip replacement for arthritis, with 98% of patients achieving good or excellent outcomes.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Medical Device Engineering

Background:

  • Total hip replacement (THR) is a common surgical procedure for treating hip arthritis.
  • Cementless THR aims to improve long-term implant survival through bone ingrowth.
  • The horizontal platform supported (HPS) femoral component is designed to optimize stress distribution.

Purpose of the Study:

  • To evaluate the long-term clinical and radiographic outcomes of cementless total hip replacement using the HPS prosthesis.
  • To assess the efficacy of the HPS femoral component in primary hip arthroplasty.

Main Methods:

  • A retrospective study of 65 primary cementless porous-coated HPS total hip replacements implanted between 1982 and 1989.
  • Clinical and radiographic follow-up was performed on 53 hips in 50 patients.

Related Experiment Videos

  • Assessment included the Harris hip score and radiographic evaluation for osteolysis and bone remodeling.

    • Main Results:

    • Average follow-up was 6.8 years (range: 5-12 years).
    • 98% of hips (52/53) achieved excellent or good results based on the Harris hip score (average 92).
    • No anterior thigh pain was reported; two early revisions were due to technical issues.

    Conclusions:

    • The HPS femoral component may favorably influence clinical and radiographic results in cementless total hip replacement.
    • This design shows promise for improving outcomes in primary hip arthroplasty.
    • Long-term follow-up supports the use of HPS prosthesis in cementless hip arthroplasty.