Rinne PP, et al. – This research aspired to determine the incidence and trends of hospital–treated acetabular fractures in the Finnish population from 1997 to 2014 and to evaluate the trauma mechanisms involved. In Finland between 1997 and 2014, the incidence of acetabular fractures increased slightly. This increase was seen mainly in the elderly population and the ageing of the population largely explains the rise. In the younger population, the incidence of acetabular fractures decreased. As per the outcomes, the most common trauma mechanism was falling on the same level.