ArticleOrthopaedic surgery2022
Reconstruction of Paprosky Type III Acetabular Defects by Three-Dimensional Printed Porous Augment: Techniques and Clinical Outcomes of 18 Consecutive Cases.
Article in Orthopaedic surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 14 citations in OpenAlex.
- Porous Ti-6Al-4V Architectures in Load-Bearing Orthopedic Reconstruction: A Critical Narrative Review of the Translational Gap Across Microstructure, Fatigue, Surface Function, and Clinical Failure Modes.Materials (Basel, Switzerland) · 2026Review
- Article
- Finite Element Analysis of a 3D-Printed Acetabular Prosthesis for an Acetabular Defect According to the Paprosky Classification.Materials (Basel, Switzerland) · 2025Article
- Three dimensionalprinted titanium block to reconstruct severe acetabular bone defects in primary hip arthroplasty.International orthopaedics · 2025Article
- [Research progress of three-dimensional printed customized prosthesis and its application in acetabular reconstruction of hip revision surgery].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024Review
- Application of Intraoperative Individualized Cup Combination-Cup-on-Cup Technique in Severe Acetabular Defects.Orthopaedic surgery · 2024Article
- Integrated Acetabular Prosthesis Versus Bone Grafting in Total Hip Arthroplasty for Crowe Type II and III Hip Dysplasia: A Retrospective Case-Control Study.Orthopaedic surgery · 2024Article
- Standardized 3D-printed trabecular titanium augment and cup for acetabular bone defects in revision hip arthroplasty: a mid-term follow-up study.Journal of orthopaedic surgery and research · 2023Article
- Three dimensional printing as an aid for pre-operative planning in complex cases of total joint arthroplasty: A case series.Journal of orthopaedicsArticle
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveTo introduce the surgical technique of reconstruction of Paprosky type III acetabular defects by 3D printed porous augments.
methodsFirst, CT scans of pelvis were obtained to establish the 3D reconstruction model of 3D printed porous augment. Then, a nylon pelvis model was printed to simulate operation with the surgeons. At this time, the augment was designed and modified according to the surgeon's suggestions and the 3D printing principles. Eighteen patients with Paprosky type III acetabular defects receiving reconstructive surgery by 3D printed porous augments were included in current study. Their data, including general information, intra-operative findings, imaging results, functional scores, and complications were retrospectively analyzed.
resultsThe mean follow-up time lasted 33.3 ± 2.0 (24-56) months. The average limb-length discrepancy (LLD) was 31.7 ± 4.2 (3-59) mm preoperatively, 7.7 ± 1.4 (1-21) mm postoperatively (P < 0.0001), and 7.5 ± 1.2 (0-18) mm at the latest follow-up. The mean vertical position of hip center of rotation (HCOR) from the interteardrop line changed from preoperative 50.7 ± 3.9 (23.3-75.3) mm to postoperative 22.9 ± 1.9 (10.1-40.3) mm (P < 0.0001), with the latest follow-up revealing an HCOR of 22.3 ± 1.7 (11.0-40.5) mm. Follow-up study showed that no hip had radiolucencies and radiological loosening of the acetabular components and augment. The average Harris hip score (HHS) improved from 40.3 ± 4.5 (10.5-71) before operation to 88.4 ± 1.9 (75-97) at the last follow-up (P < 0.0001). Moreover, follow-up exhibited that no periprosthetic joint infection, hip dislocation, fracture, and re-revision occurred.
conclusionSurgical treatment of Paprosky type III acetabular defect with 3D printed porous augment was simple, achieved good match between porous augment and the defect bone surface and the acetabular component, ideally restored LLD and HCOR after operation, significantly improved HHS and attained good early clinical outcomes. It is a promising personalized solution for patients with severe acetabular bone defect.
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