Introduction: Since introduction of the navigation technology in 1992, the development in orthopaedic trauma surgery has been changing. The CT-based navigation was the first to be developed with the advantage of providing 3D volume data but it was limited by the inconvenience and high infection rate as the operation was carried out in CT suite. For those employing pre-opera-tive CT for navigation surgery in operation rooms then there are problems of registration or change in anatomy after the initial CT image acquisition. 2D fluoroscopy-based navigation could be easily performed with readily available C-arms in the operation rooms but some fractures are difficult to be visualized using 2D images. 283 patients with fractures were operated with fiuoro-naviga-tion (2D) in PWH since 2001. However, many fractures are difficult to visualize despite multiple 2D fiuoroscopic images were taken at different angles. With the development of Siemens Siremobil Iso-C in 1999, intra-operative 3D fluoroscopy was then possible. This allowed 3D volume data to be acquired and displayed intra-operatively and the C-arm is freely mobile. We report our clinical results of applying the Stryker-Leibinger 3D spine navigation program in fracture treatment since 2002.
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