Hip replacements in the Brazilian Unified Health System: review of national data from 2008 to 2015
DOI:
https://doi.org/10.34019/1982-8047.2019.v45.26274Keywords:
Unified Health System, Arthroplasty, Replacement, Spatial Analysis, Time Series StudiesAbstract
Objective: To evaluate the incidence, spatial distribution and the factors that influence the numbers of hip arthroplasties in the Unified Health System in Brazil(SUS), especially total hip arthroplasties (THA). Methods: An level III analytical ecological study of the time series and the spatial distribution of the cases of hip arthroplasties performed in SUS between 2008 and 2015, using of data obtained from the DATASUS platform. Results: 166,365 hip arthroplasties were performed, of which 94,737 (56,9%) were primary THA. The total cost of the former was of BRL636,332,731.90 for SUS and there was an increase in the number of surgeries performed, especially from 2012. The annual average of primary THA was 11,842.1 surgeries/year (sd= 868.3 surgeries/year), at an average cost of BRL45,473,445.65/year (sd= BRL8,269,970.10/year).In 2012 the uncemented and hybrid arthroplasties became the most common. The distribution in the Brazilian states is heterogeneous and the factors positively associated were the % of citizens aging above 50 (p=0,000175) and the % of cities with high or very high HDI in each State (p=0,037). Conclusion: The incidence of primary THA in the SUS increased between 2008 and 2015. Its spatial distribution was greater on States with bigger proportions of people aging above 50 years and more cities with HDI rated as high or very high. The incidence of cemented primary THA was overcome by the uncemented and hybrid in 2012.
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