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Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_9 | Pages 79 - 79
1 May 2016
Feierabend S Lombardo D Morawa L Nasser S
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Introduction

Three-dimensional (3D) printing is a precise method of reproducing complex structures. Orthopaedic surgeons may utilize 3D imaging to better plan procedures, design implants, and communicate with other providers and patients. However, one of the limitations of 3D printed models has been the high cost associated with third-party creation of such tools. With the recent increases in the use of 3D printing many publically available software programs have been developed, which allow for inexpensive office-based production of models. We present a simple, inexpensive technique which can be used by surgeons for the rapid fabrication of 3D models in-office.

Technique

CT scan and MRI's are stored in DICOM type format which must be transformed into a 3D image. This can be achieved using publically available programs (for example, 3D slicer (http://www.slicer.org/)). These images can be manipulated with this software, allowing for separation of individual bones. The files can then be exported from this program in an STL format. These models are then further enhanced and smoothed utilizing another open source software (Blender (https://www.blender.org)). The STL file can then be opened in a third open source program (for example, Meshlab http://meshlab.sourceforge.net/) which can analyze the mesh for extra vertices, voids, and discontinuities. At this point the STL file is ready for 3D printing. The file can be loaded onto the slicer software for calculation of a tool path and printing.