An essential component of joint quality is cartilage. Therefore, the protection of this is a prerequisite for maintaining the condition of each joint. The assessment of the presence of articular cartilage is shown by X-ray of both joints in the standing position. Cartilage protection is possible for 1, 2 and 3 degree of cartilage damage according to the Kellgren and Lawrence scale.The challenge for the physician is to identify the cause of OA in accordance with the principles of Evidence Based Orthopedics/Traumatology, and not merely treat symptomatically, which is usually ineffective.In order to objectively present treatment methods, indications and the period of their implementation, it is biologically reasonable to refer to the needs of cartilage tissue resulting from the analysis of the causes of its damage and indications for justified methods of its protection.Biomechanical and biological elements are important in the process of implementing articular cartilage protection.The biomechanical elements are: limb axis disorders, differences in length, distortions at the level of the support quadrilateral, pelvic triangle and shoulder triangle, as well as balance disorders resulting from disturbances in the segmental proportion of the Fi number according to Leonardo da Vinci.There are many biological elements of the discussed disorder and they concern: the state of articular cartilage structure, matrix structure, matrix biophysical elements, molecular sponge mechanism, chondrocytes, cartilage nutrition and the severity of osteoarthritis (OA).The improvement of the conditions of the biological elements of damaged articular cartilage is considered fundamental and concerns the positive impact on numerous cartilage matrix proteins by chondroprotection. This element of treatment consists in the use of chondroitin sulphate and glucosamine as a drug, administered together in the appropriate dose and for a long time depending on the degree of degradation of the articular cartilage, usually from several to several months. The combination of chondroitin sulfate with glucosamine causes the activation of a much larger number of matrix proteins than each of the preparations separately.The pharmacokinetics of chondroitin sulfate and glucosamine are positive and favor their chondroprotective effect.The pharmacoproteomics of chondroitin sulfate and glucosamine administered together result from the activation of as many joint cartilage matrix proteins as possible. The development of proteomic techniques creates completely new therapeutic possibilities and is used to study the action of individual molecules.A clinically significant fact is that both chondroitin and glucosamine are natural, endogenous components of bone tissue and articular cartilage, so the use of both drugs is biologically compatible and results in numerous elements of cartilage protection.
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