![]() Three-dimensional comparison of preoperative and postoperative models showed a median RMSE of 2.2 (1.5-11.1), MSD of 0.5 (-0.6-6.1), and HD of 1.5 (1.1-6.5) and the differences were significantly different for RMSE ( p < 0.001) and HD ( p < 0.001). Three-dimensional analysis of preoperative and virtually planned neomandibula models was associated with a median RMSE of 1.4 (0.4-7.2), MSD of 0.3 (-0.1-2.9), and HD of 0.7 (0.1-3.1). ![]() In addition to documenting general information (sex, age, indication for surgery, extent of resection, number of segments, duration of surgery, and ischemia time), conventional measurements and three-dimensional analysis methods (root mean square error, mean surface distance, and Hausdorff distance ) were used. The pre- and postoperative Digital Imaging and Com munications in Medicine (DICOM) data were converted to standard tessellation language (STL) files. The purpose of this study is to analyze an in-house, open-source software-based solution for virtual planning.Īll consecutive cases between January 2019 and April 2021 that underwent in-house, software-based (Blender) mandibular reconstruction with a free fibula flap (FFF) were included in this cross-sectional study. ![]() CAD/CAM-assisted reconstructions are usually done in cooperation with osteosynthesis manufacturers, which entails additional costs and longer lead time. Mandibular reconstruction is conventionally performed freehand, CAD/CAM-assisted, or by using partially adjustable resection aids. ![]()
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