Hoskins W, Rainbird S, Peng Y, et al. - This study was undertaken to investigate the outcome of hemiarthroplasty revised to total hip arthroplasty (THA) and to assess the impact of femoral head size, dual mobility, and constrained liners. Researchers enrolled all aseptic 1st revisions reported to the Australian Joint Replacement Registry following hemiarthroplasty performed for fractured neck of femur (FNOF) when a THA was applied as the revision procedure between September 1999 and December 2019. In this analysis, 96,861 hemiarthroplasties were performed, with 985 revised to THA. The data exhibited that outcome of hemiarthroplasty conducted for FNOF revised to THA is affected by patient age, not by the articulation used.