Application of 3 dimension-printed injection-molded polyether ether ketone lunate prosthesis in the treatment of stage III Kienböck’s disease: A case report

Figure 1 Preoperative imaging findings. A-C: Preoperative radiographs (A), computed tomography (B) and magnetic resonance imaging (C), the arrow shows the necrotic lunate bone.

Figure 2 The process of 3D-printed injection-molded polyether ether ketone lunate prosthesis. A: The original data of healthy lunate bone were obtained by computed tomography; B-D: 3D model of lunate prosthesis using mirroring technique; E: Prosthesis structure was prepared by injection molding.

Figure 3 Intraoperative photographs. A: Necrotic lunate bone resected; B: Necrotic lunate bone and custom-made lunate bone prosthesis of different sizes; C: Prosthesis in the original anatomic position of lunate bone.

Figure 4 Postoperative imaging findings. Postoprative radiographs (A) and computed tomography (1 yr) (B).