We evaluated the efficiency of a lubricant based on a pulmonary surfactant in experimental knee osteoarthritis in rats induced by intraarticular injection of abrasive material that reduces the lubricative properties of the synovial fluid. Experimental substance containing proteins of the pulmonary surfactant exhibiting natural lubricative properties was used as the lubricant. The effectiveness of the substance was analyzed by changes in morphological characteristics of the articular cartilage in 3D reconstruction images of the knee joint obtained by the method of multiple high-precision grinding.
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