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Updated: May 11, 2026
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3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects
Published on: August 4, 2020
Custom Three-Dimensional Printed Hemipelvis Reconstructions: Encouraging Early Results for Oncologic and Nononcologic
Matthew P Abdel1, Aaron R Owen1, Oliver B Dilger1
1Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
The Journal of Arthroplasty
|May 9, 2026
Summary
Custom 3D-printed hemipelvis reconstructions show promising early success in complex cases, with all implants remaining in place and patients achieving ambulation. Dislocation remains the primary complication.
Area of Science:
- Orthopedic Surgery
- Biomaterials Engineering
- Oncologic Reconstruction
Background:
- Additive manufacturing enables custom acetabular components for massive bone loss.
- Evaluating custom, 3D-printed hemipelvis reconstructions in oncologic and non-oncologic settings is crucial.
Purpose of the Study:
- Assess implant survivorship, imaging results, and clinical outcomes of 3D-printed hemipelvis reconstructions.
- Investigate the efficacy of custom ultra-porous components in challenging orthopedic cases.
Main Methods:
- Retrospective review of seven total hip arthroplasties (THAs) using custom 3D-printed components (2018-2023).
- Indications included chondrosarcoma, aseptic loosening, osteosarcoma, and infection revision with massive acetabular bone loss (Paprosky IIIB).
- Mean follow-up was four years.
Main Results:
- All 3D-printed constructs remained in situ; one revision for dislocation, one for infection.
- Osseointegration to the ilium was observed in all proximal components; ischial flange ingrowth failure occurred in four cases.
- All patients were ambulatory post-operatively; no disease-related deaths or local recurrences.
Conclusions:
- Custom, ultra-porous 3D-printed hemipelvis components demonstrate excellent early results in salvage arthroplasty and oncologic reconstruction.
- High rates of osseointegration and patient ambulation were achieved.
- Dislocation is the most frequent complication requiring management.
