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Purpose: The purpose of this study was to investigate the influence of sex on patients undergoing total hip arthroplasty (THA) for hip osteoarthritis (HOA), aiming to assess the clinical and functional outcomes using patient‐reported outcome measures (PROMs). Methods: A retrospective analysis of patients undergoing THA at Ospedale Galeazzi‐Sant'Ambrogio between 2016 and 2022 was conducted. Inclusion criteria encompassed Kellgren–Lawrence grade III or IV HOA, with preoperative and 12‐month postoperative PROMs. Enroled patients have been selected from a larger cohort without matching design for confounders. The analyses were performed using R software v4.0.3 (R Core Team) and data distributions were assessed using the Shapiro–Wilk normality test. Results: One hundred ninety patients (72 male and 118 female) who had both preoperative and postoperative PROMs have been analysed from our institutional prosthesis registry (Datareg). Baseline and 12‐month post‐THA PROMs showed significant improvements overall. VAS score dropped notably from baseline to 3 months postsurgery (7.1 ± 2.1 vs. 0.9 ± 1.7). Functional and mental PROMs, including Harris Hip Score‐functional (HHS‐F), Harris Hip Score‐total (HHS‐t), SF‐12PS and SF‐12MS, exhibited substantial improvements post‐THA. Stratifying by sex, males had lower baseline VAS, higher HHS‐F, SF‐12MS and hip disability and osteoarthritis outcome score‐physical function short form (HOOS‐PS). At 12 months, males displayed significantly better VAS, HHS‐F, SF‐12PS and HOOS‐PS scores. Complication rates were minimal (1.5%), with stable rates across genders, mostly involving dislocation and periprosthetic fractures. Implant survival at 12 months reached an impressive 99%. Conclusion: THA remains an effective treatment for severe HOA. However, females presented with worse baseline conditions and showed relatively less improvement at 1‐year postsurgery compared to males. This difference could be attributed to physiological and psychosocial factors associated with sex, including hormonal changes, muscle mass decline and perception of pain. Longer follow‐ups and prospective studies are necessary to validate these findings and facilitate personalised approaches in HOA treatment, emphasising the need for careful consideration of sex‐related variables in clinical decision‐making for THA patients. Level of Evidence: Level III. [ABSTRACT FROM AUTHOR]

This is a retrospective, non-comparative study of 212 consecutive patients who underwent Total Hip Arthroplasty with an uncemented hydroxyapatite (HA) coated stem system from November 1997 to March 2000. The objective of the study was to analyze the performance of the implant at a minimum of 10 years in older patients (mean age 79.6 years). The Kaplan-Meier survivorship of the femoral stem at 10 years was 100%, and 97.5% for the whole prosthesis. The mean Merle d'Aubigné clinical score improved from 4.4 ± 2.1 points pre-operatively to 13.39 ± 3.77 points at final follow-up (p<0.05), and the mean VAS score for thigh pain was 1.25. The radiographic analysis showed that there were no significant radiolucent lines or osteolysis compromising the fixation of the implant. [ABSTRACT FROM AUTHOR]