3D modelling and intra-operative guides are rapidly increasing in use. They have been shown in meta-analyses to increase surgical accuracy, reduce operative time and improve teaching (1, 2). Despite the growing availability of 3D printers, access to 3D models and intra-operative guides is limited by the cost and availability of software and engineers. This technical note shows how to use 3Dslicer, a free open source multiplatform software available to download from the internet. It can be used to create 3D models from medical imaging such as CT and MRI.

3D objects can be manipulated digitally or printed using 3D printers. They can be used to aid teaching, surgical planning and patient demonstrations. We would like to present this technique which has been submitted as a surgical technical note for peer review publications.

3Dslicer is an easy to use software which should be in the surgeon’s armamentarium. Awareness of the software and this technical note will allow its ubiquitous use by surgeons. This can help in surgical teaching, appreciation of surgical planning and anatomy. It has the potential to reduce cost and production time compared with outsourcing to outside companies. This software has been already been shown to be used successfully in construction of in-house cutting guides for maxillofacial reconstruction (4). This will also create a next generation of surgeons who are familiar with software technology. Reducing the gap between surgeon and technology will help promote innovation and faster transition of technological advances into the operating room.