Abstract
Joint contracture is one of the common musculoskeletal disorders. It has seriously disturbed patients' activities of daily living in various aspects. The pathogenesis of it is eager to explore to distinct degree. Nowadays the thickeness and fibrosis of joint capsular is redarded as the major reason to joint contracture. It is reported that excessive fibroblasts and myofibroblasts activity, collagen hyperplasia, and extracellular matrix (ECM) deposition in these fibrotic condtions lead to the contracture. In addition, upregulators of myofibroblast and collagen synthesis, transforming growth factor-beta 1 (TGF-β1), and connective tissue growth factor (CTGF) were shown to be increased. Altered levels of cytokines were also thought to play a role in this process as elevated levelsof tumor necrosis factor-α(TNF-α), matrix metalloproteinases(MMPs) and abnormal distribution tissue inhibitors of MMPs(TIMPs) were demonstrated in contracted capsules. At present, the methods for clinical treatment of joint contracture mainly include two major categories:stretching therapy, physical factor therapy, exercise therapy, botulinum toxin injection and other non-surgical treatments, arthroscopic lysis, open lysis, and other surgical treatments. Surgical treatment is performed when non-surgical treatment is difficult to achieve further improvement. It has a good effect on mild to moderate joint contracture, but it is difficult to completely restore joint activity for serious joint contracture. Although clinical treatment methods are diverse, the clinical effects are staggered and the effectiveness of their treatment is controversial. Joint contracture is an important challenge faced by orthopedics and rehabilitation physicians, therapists and patients. The review summarized the pathogenesisand treatment of joint contracture and provided a theoretical basis for clinical diagnosis and treatment.
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More From: Zhongguo gu shang = China journal of orthopaedics and traumatology
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