Abstract

IGLESIAS, Santiago L. et al. Vástagos estriados cónicos modulares en revisión de artroplastia total de cadera. Estudio multicéntrico. Resultados y complicaciones a mediano plazo. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2021, vol.86, n.2, pp.197-206. ISSN 1852-7434.  http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2021.86.2.1118.

Background: The number of arthroplasties performed every year is increasing, therefore a greater number of revisions is expected in the coming decades. Modular fluted tapered stems have become the gold standard for their results in different series of patients. The objective of this article is to evaluate the results, complications and the survival rate of these stems in hip revisions with a medium-term follow-up. Materials and Methods: Retrospective, multicenter analysis. One hundred eighty-two patients who had undergone hip revision surgery between 2007 and 2017 were included. One hundred eighty-five modular fluted tapered stems were placed. Femoral bone stock defects were classified according to Paprosky and Burnett; and periprosthetic femur fractures according to Vancouver classification. Patients were evaluated clinically with Harris Hip Score (HHS) and radiographically 3 months after surgery and every year to assess stem stability, subsidence and loosening, as well as osteotomy healing. Results: Average follow-up was 55.18 months. Postoperative HHS had an average of 80.28 (SD = 12.8, 95% CI = [78.5, 82.97]). There were no postoperative complications in 75.4% of the patients. The most frequent complications were instability in 7.6% and implant subsidence in 11.5%. At the end of the follow-up, 95,05% of the patients had a stable implant. Conclusion: Modular fluted tapered stems provide a reliable, reproducible solution for the management of femoral component revisions at medium-term.

Keywords : Hip joint; arthroplasty; hip replacement; femur; prosthesis failure.

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