Ogawa T, Jinno T, Moriwaki M, et al. - For displaced femoral neck fractures (FNF), the preferred treatment options are total hip arthroplasty (THA) or hemiarthroplasty (HA) rather than fracture fixation. Skilled operators are required for performing THA for patients with FNF since patients with FNF are likely to have osteoporosis and a higher risk of complications. As per various reports, higher hospital surgical volume is linked with a reduced risk of complications after THA for osteoarthritis. In order to optimize the quality of FNF, researchers herein examined the correlation between THA and complication and the recovery of physical function after THA. They performed a nationwide retrospective cohort study of elderly patients undergoing THA. They identified 20 cases per year as the cutoff point of low hospital surgical volume by visualization of the spline curve. After performing propensity score-match analysis of 1,396 patients (mean age 75.2 [SD] 8.8, female 80.4%), they identified significantly higher risk of secondary revision surgery among the low hospital surgical volume group. Findings overall suggest a significant reduction in the incidence of secondary revision surgery in correlation with an increase in hospital surgical volume after a certain inflection point, but there was no significant reduction improvement in short-term physical functions.