Advances in application of three dimensional C arm navigation in orthopedic surgery

3D C-arm navigation system is based on traditional X-ray navigation system and 3D CT flu-oroscopic navigation system. Its greatest strength is that surgeons can obtain real-time 3D images of the patient and perform minimally invasive surgery with accuracy by comparing 2D and 3D images. Its application can allow surgeons to adjust their surgical plan intraoperatively and need not to worry about inaccurate positioning. 3D C-arm navigation system can not only analyze the relative position between the implant and the patient accurately, but also serve as strong evidence to determine whether anatomical reduction is achieved or not intraoperatively. This technology is likely to improve the surgeons＇ understanding of the criteria for intraoperative anatomic re-duction, further facilitating creation of new criteria that will greatly enhance surgical accuracy and reduce inci-dence of postoperative complications. This is of revolutionary significance to the development of orthopedics. Key words: Surgery, computer-assisted; Imaging, three-dimensional; Therapeutic uses