Digital diagnosis and treatment program for maxillofacial fractures: a retrospective analysis of 626 cases

Publication date: Available online 9 December 2017
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Wei Zeng, Xiaotian Lian, Gang Chen, Rui Ju, Weidong Tian, Wei Tang
PurposeThe purpose of this study is to evaluate the accuracy of digital diagnosis and treatmentprogramformaxillofacial fractures.MethodsThe data of 626 patients with maxillofacial fractures were analyzed retrospectivelyduring the period fromJanuary 2010 to August 2016. These patients were divided into two groups. In the experimental group, preoperativeplanning was conducted and transferred to the patients with guiding templates and navigation according tothe digital diagnosis and treatment programfor maxillofacial fractures. In the control group, post-surgery planning was performed instead of preoperative planning. Aimed to assess the accuracy of digital diagnosis and treatment program for maxillofacial fractures, preoperative planning and postoperative CT image models were superimposed and imported to the dedicated software (Geomagic studio 13.0) for calculating the difference between the two models in both groupsResultsThe results of experimental set revealed that the mean error between preoperative planning model and postoperative model ranged from 0.65 to 0.97mm, with an average value of 0.89mm. While for the control group, the mean error range was from 0.78 to 1.45 mm, and the average was 1.01 mm. Thus, the mean error of the experimental group was statistically lower than that of the control group (P< 0.0001). Postoperative analysis of the subjective evaluation of occlusionrecoverydemonstrated that 92.13% of the patients achieved good occlusion recovery in the experimental group, compared with the percentage of only 84.91% in the control group.The digital diagnosis and treatment programfor maxillofacial fractures is more accurate.ConclusionAided by the digital diagnosis and treatment program, the accuracy for maxillofacial fractures is significantly improved. In order to facilitate the application and promotion of the digital technology, further modification of the digital complete diagnosis and treatment pathway for maxillofacial fractures is highly desired.



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