Feasibility of Magnetic Resonance Imaging Monitoring of Postoperative Total Knee Arthroplasty without Metal Artifacts: A Preliminary Study of a Novel Implant Model

Figure 1

Development of a 3-dimensional (3D) model of the goat knee by computed tomography (A1-3). A 3D sketch of the polyetheretherketone- (PEEK-) on-highly cross-linked polyethylene (HXLPE) prosthesis (B1 and 3) and images of the implant (B2 and 4). The red parts in the 3D sketch (B1) represent the fine metal wires. Intraoperative images show the bone cuts and osteotomy of the distal femur and tibial plateau (C1); the prosthesis was fitted, and the bone cement was applied to the femoral and tibial sides to fix the implant (C2). The knee function of the goat is good after total knee arthroplasty (C3).