Background Neurological conditions such as Parkinson's disease are commonly accepted as a risk factor for an increased likelihood of undergoing revision surgery or death after THA. However, the available evidence for an association between Parkinson's disease and serious One of the authors (MM) reports grants from Zimmer Biomet (Warsaw, IN, USA), personal fees from Zimmer Biomet, and grants from Link Sweden, outside the submitted work. Each author certifies that his or her institution approved the human protocol for this investigation and that all investigations were conducted in conformity with ethical principles of research.