[Systemic concepts of real complexity of the organization of the joints].

Cognitive problems arising in arthrology due to discrepancies of analytical means of high complexity as regards the object under examination are analyzed. The use of systemic analysis opens up possibilities of overcoming these difficulties since it permits one (a) to understand specific conformities to natural laws caused by the integrity of the locomotor apparatus and its joints organization, thus affording one to reveal connections between the structure, metabolism, blood supply and joint function in health and disease; (b) to overcome difficulties in interdisciplinary mutual understanding and realization of various knowledge integration on the basis of systemic simulation of the integral object; (c) to arm arthrology with the methodology of task force and goal-oriented planning and organization of multidisciplinary all-round investigations on the basis of integral vision and theoretical analysis of large-scale problems.

[Circulatory theory of the pathogenesis of post-traumatic osteomyelitis].

In their experiments on white rats the authors have obtained the proofs of the circulatory conception of the pathogenesis of posttraumatic osteomyelitis and have established that, (a) the determining condition for the development of posttraumatic osteomyelitis is decompensation of acute circulatory disturbances, and (b) the extent of the area of ischemic necrosis of the bone marrow in the bone fragments predetermines the individual topographic peculiarities of posttraumatic osteomyelitis. The acute, subacute and chronic stages of the development of posttraumatic osteomyelitic are described.

[The effect of stable fixation of the fragments on the course of experimental traumatic osteomyelitis].

The authors have carried out two series of experiments on 15 dogs making a comparative x-ray morphologic study of the course of traumatic osteomyelitis in the conditions of immobilization of the fragments with a plaster bandage and a perosseous osteosynthesis apparatus. It has been demonstrated that the mobility at the junction of the fragments area causing secondary local disturbances in microcirculation is a factor determining steady progress of the suppurative inflammatory process and its transition into the chronic stage of the disease. Meanwhile early creation of high stability of the fragment fixation with a perosseous osteosynthesis apparatus ("neutral osteosynthesis") preventing secondary traumatization of the fragment ends creates optimal conditions for self-healing, i.