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Hemipelvectomy and 3D Custom-Made Prosthesis Implantation: Early Surgical, Radiographic, and Functional Results-A
Grzegorz Guzik1, Daniel Pyrka2, Paweł Łęgosz3
1Department of Orthopaedic Oncology, Subcarpatian Oncology Centre, Dworska 77A, 38-420 Korczyna, Poland.
Medicina (Kaunas, Lithuania)
|May 27, 2026
Summary
Internal hemipelvectomy with 3D-printed endoprostheses significantly improves functional outcomes and reduces pain in pelvic tumor patients. Reconstruction methods impact surgical results and complication risks, with 3D implants aiding precise reconstruction and early rehabilitation.
Area of Science:
- Orthopedic Surgery
- Oncology
- Biomedical Engineering
Background:
- Limited large-cohort studies exist on functional and surgical outcomes of internal hemipelvectomy with 3D-printed endoprostheses.
- Pelvic bone defect reconstruction methods require further evaluation for their impact on patient outcomes.
Purpose of the Study:
- To assess how pelvic bone defect reconstruction methods influence early functional, surgical, and radiographic outcomes after internal hemipelvectomy.
- To evaluate the effectiveness of 3D-printed endoprostheses in pelvic reconstruction.
Main Methods:
- Retrospective analysis of 49 patients undergoing internal hemipelvectomy and 3D-printed prosthesis implantation.
- Assessment of surgical parameters (operative time, blood loss, complications), osseointegration, and functional outcomes (HHS, MSTS-93, VAS).
- Stratification of outcomes based on West China Classification for implant design and fixation.
Main Results:
- Significant functional improvements observed, with HHS scores increasing from 44 to 76 and MSTS-93 from 12 to 20.2 post-surgery.
- Mean VAS pain scores decreased from 8.5 preoperatively to 3.2 at 6 months.
- Osseointegration rates reached 83% by 6 months; complications included wound healing issues (6 patients), deep infections (4), implant removal (3), and loosening (14-16%). Local tumor recurrence occurred in 6 cases.
Conclusions:
- Pelvic tumor resection extent and reconstruction method affect surgical parameters, complication rates, and operative time.
- Functional outcomes (VAS, HHS, MSTS-93) improved post-treatment, though longer follow-up is needed.
- 3D-printed implants facilitate precise pelvic reconstruction, supporting early mobilization and rehabilitation.
