By a News Reporter-Staff News Editor at Computer Weekly News -- Investigators publish new report on Health and Medicine. According to news originating from Shanghai, People's Republic of China, by VerticalNews correspondents, research stated, "The goal of this study is to evaluate the accuracy of patient-specific CT-based rapid prototype drill templates for C2 translaminar screw insertion. Volumetric CT scanning was performed in 32 cadaveric cervical spines."
Our news journalists obtained a quote from the research from Shanghai Jiao-Tong University, "Using computer software, the authors constructed drill templates that fit onto the posterior surface of the C2 vertebrae with drill guides to match the slope of the patient's lamina. Thirty-two physical templates were created from the computer models using a rapid prototyping machine. The drill templates were used to guide drilling of the lamina and post-operative CT images were obtained. The entry point and direction of the planned and inserted screws were measured and compared. Sixty-four C2 translaminar screws were placed without violating the cortical bone of a single lamina. The bilateral average transverse angle of intended and actual screw for C2TLS was 56.60 +/- A 2.22A degrees, 56.38 +/- A 2.51A degrees, 56.65 +/- A 2.24A degrees, 56.39 +/- A 2.45A degrees. The bilateral mean coronal angle of the planned and actual screw for C2TLS was 0A degrees, 0A degrees, -0.07 +/- A 0.32A degrees, 0.12 +/- A 0.57A degrees. The average displacement of the entry point of the superior and inferior C2TLS in the x, y, z axis was 0.27 +/- A 0.85, 0.49 +/- A 1.46, -0.28 +/- A 0.69, 0.43 +/- A 0.88, 0.38 +/- A 1.51, 0.23 +/- A 0.64 mm. The small deviations seen are likely due to human error in the form of small variations in the surgical technique and use of software to design the prototype."
According to the news editors, the research concluded: "This technology improves the safety profile of this fixation technique and should be further studied in clinical applications."
For more information on this research see: Deviation analysis of C2 translaminar screw placement assisted by a novel rapid prototyping drill template: a cadaveric study. European Spine Journal, 2013;22(12):2770-2776. European Spine Journal can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer - www.springer.com; European Spine Journal - www.springerlink.com/content/0940-6719/)
The news correspondents report that additional information may be obtained from Y. Hu, Shanghai Jiao Tong University, Sch Mech & Power Energy Engn, Inst Biomed Mfg & Life Qual Engn, Shanghai 200240, People's Republic of China. Additional authors for this research include Z.S. Yuan, W.R. Spiker, T.J. Albert, W.X. Dong, H. Xie, J.B. Yuan and C.T. Wang.
Keywords for this news article include: Asia, Shanghai, Software, Health and Medicine, People's Republic of China
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