Treatment of patients with acromioclavicular joint injuries(Rockwood II-VI) with modeled Kirschner wire and cortical screw

Objective: To propose an original method of surgical treatment for the acromial extremity of the clavicle rupture(Rockwood II-VI) with modeled Kirschner wire and cortical screw. Methods: Anatomical study and a test method were applied to 43 cadavers of both sexes. During the period between 2000 and 2013, 34 patients of both sexes were operated upon using the new method. In the comparison group(n = 120), the fixation of the acromial extremity of the clavicle rupture was performed with hamate plate, Lee hook and Kirschner wires.Results: Its application allows, according to the evaluation scale of Constant and Murley(1987), 10% more preservation of the function of the shoulder compared with traditional methods of surgical treatment, and shortens the required hospital treatment and temporary disability periods.Conclusions: It is shown that the proposed author's method combines low invasiveness, minimum dimensions of the construction and low-cost treatment.

Step-by-step external fixation of unstable pelvis with separate anterior and posterior modules

Objective: To evaluate the treatment outcomes of patients with pelvic ring injury by applying step-by-step external pelvic fixation and circular external fixation device.Methods: A total of 28 patients suffering from disintegrated pelvic ring injury are involved in the study. Fourteen patients(the treatment group) underwent step-by-step external pelvic fixation by applying anterior(anti-shock) and posterior modules. For the rest 14 patients(the experimental group), the osteosynthesis were conducted by means of a circular external fixation device. The long-term outcomes were evaluated in a year after the injury.Results: The residual deformity of 5(4–7) mm was observed in 10 patients(71.4%) from the experimental group. In the treatment group, the residual deformity was evident only in 4(28.6%) cases being 2.5(2–3) mm(P = 0.000 319) on the average. The functional result(according to the Majeed scale) was statistically better in the treatment group(P = 0.000 319). Nine(64.3%) and five(35.7%) patients in treatment group showed excellent and positive results, respectively. The excellent result was demonstrated by 3patients(21.4%) of the experimental group, the positive outcomes were observed in 6 cases(42.9%) and the unsatisfactory one was displayed by 1 patient(7.1%) of the same group.Conclusions: The modular approach applied is the advantage of the transosseous osteosynthesis allowing for a separate anterior(anti-shock) fixation and final posterior reposition of the pelvic ring preceded by the stabilization of vital functions. The above mentioned method gives an opportunity to increase the amount of techniques applied for the pelvic external fixation in polytrauma cases.

Geophagy(rock eating),experimental stress and cognitive idiosyncrasy

Objective:To discusse the impact of geophagy on liehavior and conditioned-reflex activity of Wistar rats subjected to instrumental stress under experimental conditions.Methods:Experimental geophagy was simulated by adding zeolite-containing tuff(clinoptilolite)to animal feed,the amount relating to 2%of body mass.Tuff was obtained from areas where animals usually eat subsurface rock.Search activity of animals and peculiarities of information and emotional stress were studied through the use of a universal problem chamber.Results:The results of this experimental study showed the negative impact of instrumental stress on laboratory animals,manifested in behavioral dysfunction,in the form of changes in qualitative and quantitative characteristics of search activity.Experimental geophagy contributed to significant improvement in behavioral parameters,confirming the anti-stress effects of the use of natural ingredients.Conclusions:These results suggest that,in natural environmental conditions, "edible" rocks serve as an adaptive tool for recovery from various types of environmental stresses,and are examples of self-medication.