Abstract
Summary. Aim: to determine and study the clinical value of 3D modeling in increasing the effectiveness of treatment of patients with malignant bone neoplasms. Object and methods: endoprosthesis of hip and knee joints was performed in 69 patients after resection of a bone segment with a tumor, the boundaries of which were determined using a 3D model. Tumor models were made from optically opaque polylactide polyester, peritumoral tissues from optically transparent polylactide. Results: planning and training on 3D models significantly reduced intraoperative blood loss, duration of surgical intervention, and recovery time of limb functions. The use of training 3D models before surgical intervention with possible subsequent prosthetics with special oncological endoprostheses ensures satisfactory functional results and creates conditions for restoring the quality of life of patients. Conclusions: the proposed technique provides valuable experience in the way of implementing the principles of personalized treatment into surgical practice and creates conditions for optimizing the quality of life of patients.
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