Anatomic-biomechanical substantiation of stabilization of the sacroiliac joint in cases of unstable pelvic injuries with a countersink-compression screw.

Objective: Aim: Study the mechanism of interaction between the 'sacroiliac joint - screw' system and determine the optimal parameters of the stabilizing structure, the strength of the system connection through computer modeling, and anatomical-biomechanical experiment.

Patients And Methods: Materials and Methods: The optimal parameters of the stabilizing structure for the sacroiliac joint were calculated using software package MathCAD. To validate the results of the numerical modeling, corresponding investigations of mechanical characteristics and determination of stiffness of the studied systems were conducted by an upgraded testing stand, TIRAtest-2151.

ANATOMICAL AND BIOMECHANICAL ROLE OF STATIC STABILIZERS OF THE ACROMIOCLAVICULAR JOINT.

Objective: The aim: To determine the anatomical and biomechanical significance of the static stabilizers of the acromioclavicular joint by conducting numerical modeling using the finite element method and experimental investigation.

Patients And Methods: Materials and methods: To ensure the study, modeling of the deformation processes of the clavicle and scapula systems with various combinations of ligament damage was conducted. The COMPAS-3D software package was used to build the simulation model, which allowed obtaining models that are closest to reality.

BIOMECHANICAL STUDY OF MINIMALLY INVASIVE TECHNIQUES IN SURGICAL TREATMENT OF THE TIBIA PROXIMAL EPIMETAPHYSIS FRACTURES.

Objective: The aim: Improving efficiency of the tibia proximal epimetaphysis fractures treatment by introducing minimally invasive techniques using the up-to-date metallic constructions.

Patients And Methods: Materials and methods: The study is based on the results of examination and treatment of 119 patients, using arthroscopic technique. The results were evaluated regarding the P.

OPTIMIZING DISTRACTION OSTEOSYNTHESIS IN PATIENT WITH THE TIBIAL SEGMENT TISSUE LOSS AFTER FRACTURES.

Objective: The aim: Improving treatment outcomes in patients with segment tibial bone tissue loss after fractures by improving the ring fixators technology.

Patients And Methods: Materials and methods: The study includes the data of 77 patients. The patients were distributed between two groups: the main and control one, using random numbers table.

Substantiation and differential approach to operative treatment of patients with psoriatic arthritis.

Objective: The aim: To improve the psoriatic arthritis treatment outcomes by establishing and implementing into practice operative treatment.

Patients And Methods: Materials and methods: The study basis is represented with the results of examination and treatment of 252 patients with psoriatic arthritis. The biopsy samples from the problem psoriatic eruption and intact skins regions, received from 74 patients, were studied.