Chen DQ, et al. - Researchers examined how normal pressure hydrocephalus (NPH) influence the risk for postoperative complications after primary total knee (TKA) and total hip arthroplasty (THA). They compared approximately 2000 patients with a diagnosis of NPH who underwent TKA or THA from 2005 to 2014 to 10:1 matched controls using logistic regression analysis. Outcomes revealed an elevated risk of hospital readmission, emergency room visit, and infection following TKA and an increased risk of hospital readmission, emergency room visit, and dislocation following THA, in correlation to the diagnosis of NPH. In addition, increased resource utilization following TKA and THA was noted in correlation to NPH.