Visualization of Medpor implants using surface rendering / 中华医学杂志(英文版)

ABSTRACT

<p><b>BACKGROUND</b>The Medpor surgical implant is one of the easiest implants in clinical practice, especially in craniomaxillofacial surgery. It is often used as a bone substitute material for the repair of skull defects and facial deformities. The Medpor implant has several advantages but its use is limited because it is radiolucent in both direct radiography and conventional computed tomography, causing serious problems with visualization.</p><p><b>METHODS</b>In this study, a new technique for visualizing Medpor implants was evaluated in 10 patients who had undergone facial reconstruction using the material. Continuous volume scans were made using a 16-channel tomographic scanner and 3D reconstruction software was used to create surface renderings. The threshold values for surface renderings of the implant ranged from -70 HU to -20 HU, with bone as the default.</p><p><b>RESULTS</b>The shape of the implants and the spatial relationship between bone and implant could both be displayed.</p><p><b>CONCLUSION</b>Surface rendering can allow successful visualization of Medpor implants in the body.</p>