Use of a 3D-Printed Patient-Specific Surgical Jig and Ready-Made Total Sacral Endoprosthesis for Total Sacrectomy and Reconstruction

Figure 4

An illustrative case of sacral osteosarcoma. Patient no. 1. The MRI showed the extent of tumor involvement (a, b). The surgical jig was placed after exposure of the posterior sacrum along with the bilateral posterior iliac spine, being stabilized by K-wires (c). The direction of wires was parallel to the planned osteotomy planes. Then, the oscillating saw was used to complete the osteotomy (d). Intraoperative photo showed reconstruction with a screw-rod system and 3D-printed total sacral endoprosthesis (e). Specimen X-ray (f): arrows indicated the K-wire fixation holes. Follow-up at one year (g) and 2 years (h) revealed no complication of the implants. The axial CT scan verified the perfect contact of bone-implant (i).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)