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Correlation between the level of physical activity as measured by accelerometer and the Harris Hip Score
Alejandro Alvarez1,2, Julio Domenech1,2, Carlos Valverde-Mordt1
1Hospital Arnau de Vilanova, Valencia - Spain.
Background:
The most widely used method to assess the outcome of total hip arthroplasty (THA) is the Harris Hip Score (HHS). Patients' expectations about the benefits of hip arthroplasty are increasing and are no longer limited to pain reduction. Patients believe they will be able to do recreational activity and sport after surgery. It is also essential to assess the level of physical activity after arthroplasty insofar as it is associated with early failure of the components. The purpose of this study is to explore correlation of the HHS with physical activity in patients with THA.
Methods:
This is a cross-sectional study on 47 patients with THA. Correlation of HHS with the results of physical activity obtained objectively using accelerometer worn for a week and subjectively using the IPAQ questionnaire and the UCLA scale.
Finding:
There was no correlation between the HHS and the activity measured using accelerometers, or with the IPAQ activity questionnaire. The HHS reported moderately significant correlations with the UCLA scale.
Conclusions:
The HHS may not be as discriminatory as other instruments at assessing patient activity levels after THA.
