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[Cementless hip prosthesis in inflammatory rheumatic diseases]

M Lukoschek1, H G Simank, D R Brocai

  • 1Abteilung Orthopädie I, Stiflung Orthopädische Universitätsklinik Heidelberg.

Der Orthopade
|August 11, 1998
PubMed
Summary

Cementless hip arthroplasty outcomes in rheumatic diseases were comparable to osteoarthritis patients over a 5-year follow-up. While loosening and revision rates were similar, osteoarthritis patients reported better satisfaction and function.

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Area of Science:

  • Orthopedic Surgery
  • Rheumatology

Background:

  • Cementless hip arthroplasty is a common procedure for hip joint conditions.
  • Chronic rheumatic diseases and osteoarthritis present distinct challenges for arthroplasty outcomes.

Purpose of the Study:

  • To compare the outcomes of cementless hip arthroplasty in patients with chronic rheumatic diseases versus osteoarthritis.
  • To evaluate implant survival, revision rates, and clinical function between the two groups.

Main Methods:

  • A retrospective study comparing 26 cementless hip arthroplasties in rheumatic disease patients (Rheumatoid Arthritis, Psoriatic Arthritis, Ankylosing Spondylitis) with 41 matched osteoarthritis controls.
  • Matching criteria included implantation year, age, follow-up duration, height, weight, gender, and implant type.
  • Follow-up averaged approximately 56-58 months, assessing radiographic signs of loosening/migration and clinical outcomes.

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Main Results:

  • No significant difference in stem loosening or migration was observed between groups.
  • Cup loosening/migration occurred in 4 rheumatic disease patients and 3 osteoarthritis patients.
  • Revision rates and overall loosening/revision rates did not differ significantly (p > 0.20).
  • Osteoarthritis patients reported better hip extension, higher satisfaction, and improved performance in certain daily activities.

Conclusions:

  • Cementless hip arthroplasty outcomes appear comparable between chronic rheumatic diseases and matched osteoarthritis patients at a mean 5-year follow-up.
  • Observed clinical differences are likely attributable to the underlying chronic illness of rheumatic patients.
  • Long-term data is necessary to fully recommend cementless implants for patients with chronic rheumatic diseases.