Di Martino A, Bordini B, Ancarani C, et al. - A registry-based, retrospective comparative cohort study was performed to evaluate the long-term survival of total hip arthroplasty (THA) in patients who have undergone a lumbar spine fusion (LSF) during a 17-year period (2000 to 2017). The study included a total of 679 patients who had undergone both THA and LSF surgeries. Individuals were distinguished from the regional arthroplasty database and cross-linked to patients with LSF from the regional hospital discharge database between 2000 and 2017. Researchers collected and compared demographic data, diagnosis leading to primary THA, primary implant survival, perioperative complications, number and causes of failure, and patients requiring revision arthroplasty. They further retrieved and examined data from 67,919 primary THAs performed during the same time period for comparison. Results exhibit that approximately 679 (1%) THA patients were subjected to LSF in this registry-based population study. The results of this study indicate that individuals undergoing THA and LSF have an elevated risk of mechanical complications with their THA and a slightly increased risk of revision arthroplasty.