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Three-Dimensional Printed Prosthesis Reconstructs Bilateral Type III Pelvic Defect After Malignant Tumors Resection
Xuanhong He1,2, Yi Luo1,2, Chang Zou1,2
1Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Orthopaedic Surgery
|November 24, 2024
Summary
Three-dimensional (3D)-printed bilateral pubis prostheses effectively reconstruct Type III pelvic defects, restoring pelvic ring integrity and improving limb function. This innovative approach offers rigid support, preventing complications like hernias and demonstrating favorable early clinical outcomes.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Oncology
Background:
- Type III hemipelvectomy and reconstruction present significant surgical challenges.
- Existing reconstruction methods for bilateral Type III pelvic defects are limited.
- Three-dimensional (3D)-printed prostheses have shown promise for unilateral defects.
Purpose of the Study:
- To design a 3D-printed bilateral pubis prosthesis for Type III pelvic defects.
- To evaluate the early clinical outcomes and complications of this novel reconstruction.
- To assess the prosthesis's ability to restore pelvic stability and function.
Main Methods:
- Retrospective analysis of patients undergoing 3D-printed bilateral pubis prosthesis reconstruction after tumor resection (2017-2021).
- Evaluation of demographics, operative details, blood loss, and functional outcomes using the Musculoskeletal Tumor Society-93 (MSTS-93) score.
- Recording and analysis of postoperative complications and osteointegration.
Main Results:
- Four patients (3 female, 1 male) were included, with a mean follow-up of 15.5 months.
- Mean MSTS-93 score was 28.5, indicating good functional recovery.
- One case of incision necrosis was observed; no hernias, prosthesis displacement, or implant failures occurred. Good osteointegration was noted at 15 interfaces.
Conclusions:
- 3D-printed bilateral pubis prostheses effectively restore pelvic ring integrity and stability.
- This reconstruction method improves limb function and prevents hernia development.
- 3D-printed bilateral pubis prostheses represent a favorable option for Type III pelvic defect reconstruction.
