[Comparative evaluation of the methods of treatment of dislocations of the clavicle].

An analysis of treatment was made in 93 patients divided into three groups: conservative treatment (11 patients), operations by traditional methods (28 patients), surgery using constructions of titanium nickelide (54 operations). It was found that the conservative treatment of complete acromioclavicular end dislocation was followed by a repeated displacement, development of deforming arthrosis and deformity of the area of injury. Transcapticular fixation of acromioclavicular end dislocation resulted in the development of deforming arthrosis (68%), the incidence of this complication depending on the kind of operation.

[The biomechanical characteristics of the hip joint during endoprosthesis].

Under consideration was the interaction of the hip joint endoprosthesis pedicle with the femur. Causes of shaking the prosthesis pedicle, fracture of the femur, progressing deforming arthrosis were analyzed. Formulas for calculating the character of interactions of the prosthesis pedicle with the femur are presented, as well as risk factors and recommendations for practical use.