How precise is excision and reconstruction using 3D printing technology for total sacrectomy: accuracy validation in 9 consecutive cases.

ABSTRACT:

Background

With 3D printing technology, we can now use preoperative imaging for precise surgical plan. We can also use patient-specific surgical jig to improve the accuracy of osteotomy and 3D-printed custom-made endoprostheses combined with a screw-rod system to restore lumbosacral stability. The aim of this study was to evaluate the accuracy of 3D printing technology for precise osteotomy during total sacrectomy.

Methods

Nine patients with primary malignant tumors of the sacrum who underwent total sacrectomy at our center were enrolled. Osteotomy was planned based on preoperative imaging (CT, MRI). Generally, an additional 8-10 mm margin beyond the tumor was determined by the fusion of MR and CT images. Patient-specific surgical jigs and 3D-printed sacral endoprostheses we

SUBMITTER: Shi Q 

PROVIDER: S-EPMC12308921 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature