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Hip function in patients >55 years old: population reference values.

J R Lieberman1, G Hawker, J G Wright

  • 1Department of Orthopaedic Surgery, UCLA Medical Center, Los Angeles, California 90095, USA. jlieberman@mednet.ucla.edu

The Journal of Arthroplasty
|October 19, 2001
PubMed
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Healthy adults without hip or knee issues maintain good hip function with age. Aging alone does not cause hip function decline, suggesting other factors influence outcomes like total hip arthroplasty.

Area of Science:

  • Orthopedics
  • Gerontology
  • Biostatistics

Background:

  • Hip function is crucial for mobility and quality of life.
  • Understanding age-related changes in hip function is essential for clinical assessment.
  • Existing data on population hip function across age groups requires validation.

Purpose of the Study:

  • To establish normative hip function values in a healthy adult population across different age groups.
  • To evaluate hip function using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Harris Hip Score (HHS).
  • To determine the correlation between age and hip function metrics.

Main Methods:

  • A random sample of 184 individuals with no history of hip or knee pathology was assessed.
  • Participants completed the WOMAC (pain, function, stiffness) and Harris Hip Score questionnaires.

Related Experiment Videos

  • Statistical analysis was performed to compare scores across age groups and identify correlations.

    • Main Results:

    • Average WOMAC scores were: pain 0.01, function 1.8, stiffness 0.4.
    • Average Harris Hip Score was 94 +/- 8.2.
    • No significant correlation was found between age groups and WOMAC or Harris Hip Scores. Patients with other joint complaints had lower scores.

    Conclusions:

    • Healthy adults without prior hip or knee pathology do not experience significant age-related decline in hip function.
    • Deterioration in total hip arthroplasty function over time is unlikely due solely to the aging process.
    • Population-based hip function values can be established using WOMAC and HHS in healthy adults.