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The diagnosis and monitoring of clinically-significant pathologies of the knee remains challenging, and it is unknown why only some injuries become painful or respond to surgical intervention. The limitations of diagnostic magnetic resonance imaging result in arthroscopy that is not always beneficial. Elucidation of biochemical pathways underlying pain in this condition may aid patient selection for surgery and provide pharmacotherapeutic targets. Cytokines or a novel yet uncharacterized protein may be involved in pain following meniscus injury and diagnostic cytokine assay may help physicians differentiate patients that may benefit from arthroscopy from those that may not. Additionally, evaluating post-operative biochemical profiles may provide a method of monitoring surgical outcome and understanding post-operative continuation or remission of pain.
Lavage of the operative and contralateral knee for comparison are performed under anesthesia prior to arthroscopy by the infusion of 10cc sterile saline into the knee joint followed by the immediate withdrawal into the syringe, and storage at -80°C in a tube containing a protease inhibitor. At 12wk post-operative a 10cc lavage is performed on the knee that underwent surgery. Clinical findings for each sample are quantified using gold-standard symptom severity questionnaires.
The specimens will be analyzed for 31 potential biomarkers using a multiplexed immunoassay panel, the results of which will be compared with pre- and post-operative clinical findings and radiographic imaging. Plans do not currently include microarray analysis, but this may be later included.
Observational Model: Case Control, Time Perspective: Prospective
Stanford University School of Medicine
Published on BioPortfolio: 2014-08-27T03:19:56-0400
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Inflammation of the PERIAPICAL TISSUE. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is PERIAPICAL GRANULOMA. Suppurative inflammation is PERIAPICAL ABSCESS.
Inflammation of the lung parenchyma that is associated with PLEURISY, inflammation of the PLEURA.
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Inflammation caused by an injurious stimulus of peripheral neurons and resulting in release of neuropeptides which affect vascular permeability and help initiate proinflammatory and immune reactions at the site of injury.
A reovirus infection, chiefly of sheep, characterized by a swollen blue tongue, catarrhal inflammation of upper respiratory and gastrointestinal tracts, and often by inflammation of sensitive laminae of the feet and coronet.
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