The actual problem of interdisciplinary projects organizing is discussed. The purpose of the article is to justify the principles of planning and conducting the interdisciplinary medico-psychological research, in identifying its features in comparison with pseudo-interdisciplinary approaches. Types of interdisciplinary research are examined, distinctions are made between the true and pseudo-interdisciplinary approaches. The principles of true interdisciplinary research are formulated — the principle of choosing the object of study, the principle of determining the coordinates of the subject area of research, the hypothetico-deductive principle of interdisciplinary research and the principle of unity of interdisciplinary project methodology. The content of each principle is revealed by the example of medico-psychological research currently being carried out by the team of employees of the Institute of Psychology RAS and the National Medical Research Center of Traumatology and Orthopedics named after N.N. Priorov. It is shown that the system-structural approach to conducting the interdisciplinary medico-psychological research consists in coordinating theoretical constructs and empirical variables in accordance with the given coordinates of the research subject field and specific criteria for assessing the physical and mental state of the object of study. It is shown that the selected criteria allow, without leveling the specifics of individual scientific disciplines — medicine and psychology — to form a unified subject field of research and to develop an approach relevant for solving scientific and practical problems.

Резюме. Представлены результаты комплексного обследования и лечения детей с хроническим остеомиелитом в возрасте от 7 месяцев до 18 лет. Определена методика использования различных форм КоллапАна. Малоинвазивность метода применения КоллапАн-геля позволяет выполнить оперативное вмешательство при расположении очага вблизи зоны роста. Практически у всех детей выявлены сопутствующие соматические заболевания, латентная бактериально-вирусная инфекция. В связи с чем оперативное вмешательство необходимо дополнять полноценным лечением сопутствующей патологии.Ключевые слова: хронический остеомиелит, дети, КоллапАн, бактериально-вирусная инфекция.

The researchers discuss the first experience of treating 9 pediatric patients with osteoid osteoma (3), primary chronic osteomyelitis (4) and aneurysmal cysts (2). Selected patients had complex treatment which included unloading of the diseased segment of the skeleton and laser ablation of the pathological focus. Laser ablation was done with medical laser «AZOR-ALM», emitting light at wavelength 1.55 μm. Registration certificate No. RZN 2015/2720 of Roszdravnadzor. Manufacturer – LLC «AZOR» (Moscow). Small tumors and inflammatory diseases of the skeleton were surgically treated with high-level laser light in the computed tomography room. Patients with lesions of lower extremities and pelvis previously had spinal anesthesia. If a pathologic focus was located in bones of upper extremities, regional brachial plexus blockage was preferable. In all cases, positive outcomes were seen. Follow-up lasted for 6 months.

This article provides an analysis of 82 patients for the period from 2000 to 2018 aged 5 to 18 years with pathological fractures of the long bones of the skeleton on the basis of benign tumors and tumor-like diseases. Most often, fractures were observed with a solitary bone cysts - 24, an aneurysmal bone cyst - 19, fibrous dysplasia - 20, neosteogenic fibroma - 7, Ollier’s disease - 6, osteofibrous dysplasia - 2, giant-cell tumor - 3, hemangioma - 1. On the basis of the Department of Pediatric Bone Pathology and Adolescent Orthopedics of N.N. Priorov National Medical Research Center of Traumatology and Orthopedics all patients underwent a comprehensive physical exams and surgical treatment. The clinical and radiological picture was studied and the features of the course of pathological fractures were revealed depending on the nosology of the tumor process. It is shown that when a pathological fracture occurs, the treatment approach should be individualized depending on the location of the focus, the patient’s age and nosology.