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Morphological changes in tissues adjacent to the implant were studied 1, 2, 6, and 12 months after implantation of biodegradable suture materials (catgut thread, DemeTECH polyfilament thread, and Surgilactin monofilament thread) into subcutaneous fat of rats. Tissue reaction to implantation of different suture materials developed as usual in response to a(More)
Recent literature on the morphological results of the application of polymers produced from lactic acid (polylactides--PLA), contains a plethora of experimental and clinical data on the efficiency and safety of their use for the medico-biological purposes. However, the question on the actual rate of biological disintegration of PLA materials remains(More)
The objective of this study was to examine the peculiarities of tissue reactions during the degradation of "Collost" bioplastic material on the collagen basis with completely preserved fibrous structure, after its implantation into the bone tissue defect. The defect in bone tissue sized 1-2 mm x 3-5 mm was created in tibial condyle. The study was performed(More)
The reaction of rat tissues was studied using the methods of light microscopy 4, 12, 18 days, 1, 2, 6 and 12 months after hypodermic implantation of polymeric films made of polyhydroxyalkanoates (PHA). It was found that polymer, like any foreign matter in an organism, become immediately covered by fibrin. By day 4, there the deformation and destruction of(More)
Experience of endovenous laser coagulation in the treatment of the varicose disease of the lower extremities is presented. This method was used in 107 patients. Surgical technique of isolated endovenous laser coagulation and combined phlebectomy was described in detail. Morphologic data on laser injury of a venous wall are presented. Short- and long-term(More)
The reaction of the surrounding tissues to the implantation of biodegradable suture materials (plain catgut threads, DemeTECH polyglactin 910, Surgilactin--polyglactin 910) into the subcutaneous adipose tissue of rats, was studied using light microscopy 1, 2, 6 and 12 months after grafting. It was shown that the tissue reactions to implantation of different(More)
Tissue reactions, accompanying the degradation processes of polylactide (PLA) implants after their placement into the subcutaneous tissue, were studied by the methods of light microscopy in 6 month-old Wag rats (n=24) weighing 180-200 g. It was found that PLA implants became encapsulated by connective tissue. If the implant or its fragment had sharp margins(More)
The processes developing in various rat tissues after implantation of polymeric polyhydroxyalkanoate (PHA) film fragments with adsorbed autologous multipotent stromal (mesenchymal) cells of bone marrow origin (AMMSCBM), were studied by methods of light microscopy. After the implantation of PHA film with AMMSCBM, the number of blood vessels in the(More)
The method of light microscopy was used to study the reactions of the surrounding tissues to the implantation of non-degradable surgical materials (prolene 3/0 thread made from polypropelene, the composite grid made from polypropelene or polyester with polylactic acid) in the subcutaneous adipose tissue of rats 1, 2, 6 and 12 months after grafting. No less(More)