• Jiliang He, Guoqing Tan, Dongsheng Zhou, Liang Sun, Qinghu Li, Yongliang Yang, and Ping Liu.
• From the Department of Orthopaedic, Shandong Provincial Hospital Affiliated to Shandong University (JH, DZ, QL, YY); Department of Orthopaedic, Affiliated Hospital of Shandong University of Traditional Chinese Medicine (GT); Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University (LS); and Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China (PL).
• Medicine (Baltimore). 2016 Jan 1; 95 (2): e2470.

AbstractPercutaneous screw insertion for minimally displaced or reducible acetabular fracture using x-ray fluoroscopy and computer-assisted navigation system has been advocated by some authors. The purpose of this study was to compare intraoperative conditions and clinical results between isocentric C-arm 3-dimensional (Iso-C 3D) fluoroscopy and conventional fluoroscopy for percutaneous retrograde screwing of acetabular anterior column fracture.A prospective cohort study was conducted. A total of 22 patients were assigned to 2 different groups: 10 patients in the Iso-C 3D navigation group and 12 patients in the conventional group. The operative time, fluoroscopic time, time of screw insertion, blood loss, and accuracy were analyzed between the 2 groups.There were significant differences in operative time, screw insertion time, fluoroscopy time, and mean blood loss between the 2 groups. Totally 2 of 12 (16.7%) screws were misplaced in the conventional fluoroscopy group, and all 10 screws were in safe zones in the navigation group. Percutaneous screw fixation using the Iso-C 3D computer-assisted navigation system significantly reduced the intraoperative fluoroscopy time and blood loss in percutaneous screwing for acetabular anterior column fracture.The Iso-C 3D computer-assisted navigation system provided a reliable and effective method for percutaneous screw insertion in acetabular anterior column fractures compared to conventional fluoroscopy.

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