{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,11]],"date-time":"2026-11-11T02:53:29Z","timestamp":1794365609681,"version":"4.9.0"},"reference-count":77,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,3,15]],"date-time":"2025-03-15T00:00:00Z","timestamp":1741996800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The treatment of Paprosky Type III acetabular defects is a significant challenge in orthopedic surgery, as standard components often do not fit properly. This study aims to evaluate the biomechanical efficacy of a custom 3D-printed PEEK acetabular prosthesis compared to a conventional titanium implant. A 3D model of the pelvis was created using a computed tomography scanner and a custom-made acetabular implant was designed. Finite element analysis (FEA) was performed using Ansys Workbench to evaluate the stress and strain distribution of two materials on the pelvic bone. The results showed that the titanium prosthesis model had less strain transmitted to the bone, while the PEEK model had better stress transmission and bone stimulation. The use of custom implants reduced the risk of stress shielding, potentially improving long-term bone health. Three-dimensional-printed acetabular prostheses therefore offer significant advantages over traditional implants, suggesting improved implant stability and reduced failure rates.<\/jats:p>","DOI":"10.3390\/ma18061295","type":"journal-article","created":{"date-parts":[[2025,3,17]],"date-time":"2025-03-17T04:29:28Z","timestamp":1742185768000},"page":"1295","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Finite Element Analysis of a 3D-Printed Acetabular Prosthesis for an Acetabular Defect According to the Paprosky Classification"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-2002-9938","authenticated-orcid":false,"given":"Mario","family":"Ceddia","sequence":"first","affiliation":[{"name":"Department of Mechanics, Mathematics and Management, Politecnico di Bari University, 70125 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe","family":"Solarino","sequence":"additional","affiliation":[{"name":"Department of Translational Biomedicine and Neuroscience, University of Bari, 70125 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1414-5692","authenticated-orcid":false,"given":"Alessandro","family":"Pulcrano","sequence":"additional","affiliation":[{"name":"Department of Translational Biomedicine and Neuroscience, University of Bari, 70125 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonella","family":"Benedetto","sequence":"additional","affiliation":[{"name":"Department of Translational Biomedicine and Neuroscience, University of Bari, 70125 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5759-0692","authenticated-orcid":false,"given":"Bartolomeo","family":"Trentadue","sequence":"additional","affiliation":[{"name":"Department of Mechanics, Mathematics and Management, Politecnico di Bari University, 70125 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,15]]},"reference":[{"key":"ref_1","first-page":"8","article-title":"Current trends in total hip arthroplasty","volume":"9","author":"Eingartner","year":"2007","journal-title":"Ortop. 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