Annotation. Relevance. The main place in the rehabilitation system of patients with orbital injuries is occupied by reconstructive surgeries, the purpose of which is to restore the normal anatomy of the damaged orbit to achieve good functional and aesthetic results. Advances in computer technology, including three-dimensional printing, the introduction of software for planning surgical treatment, the introduction of new models of implants can improve the results of reconstructive treatment for orbital injuries. Purpose of the study. Clinical testing of the developed software for automatic calculation of orbital parameters and an individual orbital implant for reconstruction of bone walls in case of their damage and deformation with the construction of a 3D model of the orbit and orbital implant. Materials and methods. Software developed in the Republic of Belarus for automatic calculation of orbital parameters and an individual orbital implant. The prevalence of the traumatic process in the orbit (orbital volume, volume of prolapsed tissue, degree of hypophthalmos and enophthalmos) were assessed. This algorithm for determining the size of orbital defects to create an individual implant was tested on 35 patients who made up two groups. Group 1 – orbital parameters were calculated using the developed automated program – 25 patients. Group 2 – orbital parameters were calculated using a semi-automatic version of the program – 10 patients. Results and conclusion. It was found that the volume of a healthy orbit in patients of the main group was 24.6±0.47 cm³, in the control group – 24.33±0.49 cm³. On the side of the injury, an increase in the orbital volume was observed in all patients. The average volume of orbital tissue prolapsed into the maxillary sinus in patients with isolated orbital floor fractures was 2.9±0.66 cm3 in the main group and 3.0±0.37 cm3 in the control group. The time spent on processing images of the orbital bone wall defect in automatic mode averaged 15.5±1.6 minutes, in semi-automatic mode it averaged 153.31±12.73 minutes. Comparison of the orbit volume calculated based on the results of neural network marking with the orbit volumes calculated based on the results of manual marking showed that the difference does not exceed 4–8%, and comparison of the virtual orbit prototype and the bone defect prototype calculated based on the results of neural network marking and calculated based on the results of manual marking showed that the difference is no more than 5.5%. The developed software is essential not only for automating the process of calculating orbit parameters at the stage of preparation for surgery and for assessing the results of surgery to eliminate the defect of the bone walls of the orbit, but also for the manufacture of individual implants that completely repeat the topographic parameters of the defect of the bone structures of the orbit.
| Mualliflar | Дудич О.Н., Красильникова В.Л., Осипович В.С. |
|---|---|
| Jurnal | Передовая Офтальмология |
| Nashr sanasi | 2024-07-23 |
| Jild | 8 |
| Son | 2 |
| Betlar | 152-163 |
| DOI | 10.57231/j.ao.2024.8.2.030 |
DOI: 10.57231/j.ao.2024.8.2.030 · Maqolaning asl sahifasi · PDF
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