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- W2022991367 abstract "The articular cartilage and the subchondral bone form a biocomposite that is uniquely adapted to the transfer of loads across the diarthrodial joint. During the evolution of the osteoarthritic process biomechanical and biological processes result in alterations in the composition, structure and functional properties of these tissues. Given the intimate contact between the cartilage and bone, alterations of either tissue will modulate the properties and function of the other joint component. The changes in periarticular bone tend to occur very early in the development of OA. Although chondrocytes also have the capacity to modulate their functional state in response to loading, the capacity of these cells to repair and modify their surrounding extracellular matrix is relatively limited in comparison to the adjacent subchondral bone. This differential adaptive capacity likely underlies the more rapid appearance of detectable skeletal changes in OA in comparison to the articular cartilage. The OA changes in periarticular bone include increases in subchondral cortical bone thickness, gradual decreases in subchondral trabeular bone mass, formation of marginal joint osteophytes, development of bone cysts and advancement of the zone of calcified cartilage between the articular cartilage and subchondral bone. The expansion of the zone of calcified cartilage contributes to overall thinning of the articular cartilage. The mechanisms involved in this process include the release of soluble mediators from chondrocytes in the deep zones of the articular cartilage and/or the influences of microcracks that have initiated focal remodeling in the calcified cartilage and subchondral bone in an attempt to repair the microdamage. There is the need for further studies to define the pathophysiological mechanisms involved in the interaction between subchondral bone and articular cartilage and for applying this information to the development of therapeutic interventions to improve the outcomes in patients with OA." @default.
- W2022991367 created "2016-06-24" @default.
- W2022991367 creator A5080984126 @default.
- W2022991367 date "2012-07-24" @default.
- W2022991367 modified "2023-10-12" @default.
- W2022991367 title "Alterations in periarticular bone and cross talk between subchondral bone and articular cartilage in osteoarthritis" @default.
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- W2022991367 doi "https://doi.org/10.1177/1759720x12437353" @default.
- W2022991367 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3403248" @default.
- W2022991367 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22859924" @default.
- W2022991367 hasPublicationYear "2012" @default.
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