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Physical activity before and after primary total hip arthroplasty: a registry-based study.
Anne Lübbeke1, Dorith Zimmermann-Sloutskis, Richard Stern
1University of Geneva and Geneva University Hospitals, Geneva, Switzerland.
Arthritis Care & Research
|August 9, 2013
Summary
Total hip arthroplasty (THA) significantly improves physical activity levels long-term. Patients report higher activity 5 and 10 years post-surgery compared to pre-surgery, especially younger individuals and those with active lifestyles.
Area of Science:
- Orthopedics
- Rehabilitation Medicine
- Biomedical Engineering
Background:
- Detailed long-term activity assessment after total hip arthroplasty (THA) is limited.
- Understanding pre- and post-operative activity is crucial for patient outcomes.
Purpose of the Study:
- To evaluate patient activity levels before disease onset, before THA, and at 5 and 10 years post-surgery.
- To identify predictors of high activity 5 years after THA.
Main Methods:
- Cross-sectional analysis of University of California, Los Angeles (UCLA) activity scores in elective primary THAs (1996-2012).
- Activity levels compared across four periods: pre-symptom onset, pre-surgery, 5 years post-surgery, and 10 years post-surgery.
- Logistic regression used to identify predictors of high activity (UCLA score ≥7) at 5 years.
Main Results:
- Mean UCLA scores: 6.9 (pre-symptom), 3.5 (pre-surgery), 5.7 (5 years), and 5.5 (10 years).
- High activity reported by 49% pre-symptom, 5% pre-surgery, and 28% at 5 and 10 years post-surgery.
- Predictors of high activity at 5 years included younger age, male sex, lower BMI, lower ASA class, and pre-operative active lifestyle.
Conclusions:
- Physical activity levels are substantially higher 5 and 10 years after primary THA compared to pre-surgery levels.
- Improvements in activity are observed across all age categories and sexes.