[Biomechanical aspects of efficiency of Latarjet's surgery for habitual dislocation of the shoulder in the bones fractures].

Biomechanical substantiation of efficiency of the Latarjet's operation in patients, suffering habitual dislocation of the shoulder while osteal tissue affection, was done, basing on retrospective analysis of clinico-roentgenological indices and the magnet resonance tomography (MRI) data. The data were compared among patients, to whom for habitual dislocation of the shoulder a stabilization of the shoulder joint was performed in accordance to Latarjet's method, and the results of biomechanical experiment--determination of the stress-strain state (SSS) of the shoulder joint structures in conditions of defect of the joint depression of scapula (JDS) and the Hill-Sax damage, using the method of a definitely-elemental (DE) imitational computeric modelling. In the upper extremity abduction by 90 degrees the maximal indices of SSS on surface of JDS, while presence of the defect, measuring 30% of common area, before the Latarjet's operation have exceeded their postoperative values by 198.7%; while abduction of upper extremity by 90 degrees and its external rotation by 45 degrees--by 286.8%; while abduction of the upper extremity by 90 degrees and its external rotation by 90 degrees--by 346.5%.