Treatment of Paprosky Type IIIA-B Acetabular Defects and Pelvic Discontinuity With Custom 3D Implants: Medium-Term Results

  • Carlos Alberto Vega Orthopedics and Traumatology Service, Hospital Zonal General de Agudos “Dr. Carlos Bocalandro”, Loma Hermosa, Buenos Aires, Argentina.Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina https://orcid.org/0000-0002-6104-5099
  • Favio Moruno Orthopedics and Traumatology Service, Hospital Zonal General de Agudos “Dr. Carlos Bocalandro”, Loma Hermosa, Buenos Aires, Argentina http://orcid.org/0000-0002-9522-4079
  • Esteban Garavano Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina https://orcid.org/0000-0002-6216-4356
  • Matías Sued Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina https://orcid.org/0000-0002-1901-8302
  • Ellery Palomino Prado Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina https://orcid.org/0009-0001-5659-0375
DOI: https://doi.org/10.15417/issn.1852-7434.2023.88.5.1760
Keywords: Acetabular defect, 3D cup, custom implant, reconstruction

Abstract

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 3Dprintedacetabular 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.

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Author Biographies

Carlos Alberto Vega, Orthopedics and Traumatology Service, Hospital Zonal General de Agudos “Dr. Carlos Bocalandro”, Loma Hermosa, Buenos Aires, Argentina.Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Zonal General de Agudos “Dr. Carlos Bocalandro”, Loma Hermosa, Buenos Aires, Argentina. Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Favio Moruno, Orthopedics and Traumatology Service, Hospital Zonal General de Agudos “Dr. Carlos Bocalandro”, Loma Hermosa, Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Zonal General de Agudos “Dr. Carlos Bocalandro”, Loma Hermosa, Buenos Aires, Argentina
Esteban Garavano, Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Matías Sued, Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Ellery Palomino Prado, Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina
Hip Pathology Unit, Orthopedics and Traumatology Service, Hospital Central de San Isidro “Dr. Melchor A. Posse”, Buenos Aires, Argentina

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Published
2023-10-17
How to Cite
Vega, C. A., Moruno, F., Garavano, E., Sued, M., & Palomino Prado, E. (2023). Treatment of Paprosky Type IIIA-B Acetabular Defects and Pelvic Discontinuity With Custom 3D Implants: Medium-Term Results. Revista De La Asociación Argentina De Ortopedia Y Traumatología, 88(5), 511-519. https://doi.org/10.15417/issn.1852-7434.2023.88.5.1760
Issue
Vol 88 No 5 (2023): ACARO
Section
Clinical Research
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