Resumen

VEGA, Carlos A. et al. Tratamiento de defectos acetabulares tipo IIIA-B de Paprosky y discontinuidad pélvica con implantes 3D a medida: resultados a mediano plazo. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2023, vol.88, n.5, pp.511-519. ISSN 1852-7434.  http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2023.88.5.1760.

Introduction: Acetabular revision is a particularly challenging surgery when there is loss of bone stock and extensive acetabular defects. 3D implants can make up for these defects and adapt to each circumstance. The objective of this study was to evaluate clinical and radiographic outcomes in patients with severe acetabular defects treated with 3D-printed implants and determine the appropriate cup constraint for each patient. Materials and Methods: A retrospective study was carried out on 10 patients with severe acetabular defects classified as Paprosky type IIIA-B and pelvic discontinuity who underwent surgery with a custom 3D-printed acetabular prosthesis, carried out by the same surgery team between 2016 and 2022. Results: The average follow-up was 40.5 months. The Harris hip score improved significantly from an average of 24.2 to 63.5 at the last follow-up. No signs of loosening or migration of the 3D cup in terms of inclination and anteversion were observed in any case, at the last control. Conclusion: Custom-made acetabular implants represent a valid solution to treat severe acetabular bone defects and pelvic discontinuity.

Palabras clave : Acetabular defect; 3D cup; custom implant; reconstruction.

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