Sacral Reconstruction with a 3D-Printed Implant after Hemisacrectomy in a Patient with Sacral Osteosarcoma: 1-Year Follow-Up Result.

摘要: Pelvic reconstruction after sacral resection is challenging in terms of anatomical complexity, excessive loadbearing, and wide defects. Nevertheless, the technological development 3D-printed implants enables us to overcome these difficulties. Here, we present a case osteosarcoma surgically treated with hemisacrectomy using implant. The implant was printed as customized titanium prosthesis from 3D real-sized patient's CT images. It consisted mostly porous mesh incorporated dense strut. After 3-months neoadjuvant chemotherapy, patient underwent hemisacretomy preservation contralateral nerves. anatomically installed on defect fixed screw-rod system up level L3. Postoperative pain significantly low recovered sufficiently walk early 2 weeks postoperatively. showed left-side foot drop only, without loss sphincter function. In 1-year follow-up CT, excellent bony fusion noticed. To our knowledge, this first report hemisacral custom-made We believe that technique can be applied spinal reconstructions partial or complete spondylectomy variety diseases.