EFFECTIVENESS OF CEMENTLESS PROSTHESIS IN PATIENTS OVER 70 YEARS OF AGE.

Introduction: Hip replacement in the elderly is challenging due to their unique clinical conditions. Choosing the prosthesis requires an evaluation of risks and benefits, considering the implant's durability, postoperative recovery, and patient longevity. Uncemented prostheses have emerged as a viable alternative, offering osseointegration, as well as mechanical and biological stability. Methods: A retrospective observational study analyzed the medical records of patients aged 70 years or older who underwent total hip arthroplasty (THA) with an uncemented prosthesis between 2013 and 2022. Age, sex, diagnosis, procedures performed, and postoperative follow-up time were evaluated. Results: Of the 231 patients analyzed, women predominated (62%), with an average age of 78.5 years for men and 79.1 for women. There was a consistent preference for the uncemented technique across all age groups, with less than 20% of cases requiring cerclage. Complications were minimal, with over 90% of cases being complication-free, highlighting the technique's efficacy. Conclusion: The technique reduces complications, including inflammatory reactions and long-term bone loss. The low rate of surgical revision and return to recreational activities reinforce its efficacy. Although cemented prostheses have historically been preferred, uncemented prostheses offer advantages in the elderly population, as they preserve bone and facilitate revisions.