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Study aim
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Investigating the results of adding betamethasone to multiple drug injections around a joint in pain score, range of motion, satisfaction with pain relief, and postoperative complications; Also check the age, sex and weight of patients.
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Design
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Clinical trial with control group, with parallel groups, double-blind, randomized, phase 2 and 3 on both knees of 30 patients. 4 blocks were used to randomize.
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Settings and conduct
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The study is to examine pain relief after joint replacement surgery at Khatam Hospital in Shahroud. Divide patients into 2 groups A and B with 4 blocks. A cocktail containing betamethasone is injected in group A on the right foot and in group B on the left foot. Patients, researchers, physiotherapists, and all nursing staff are unaware of these groupings.
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Participants/Inclusion and exclusion criteria
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People between the ages of 50 and 90 with advanced osteoarthritis, which is a candidate for bilateral knee replacement enter.
Contraindications to the use of the studied drugs (including known allergies or intolerance to one of the drugs, fungal infections, heart, liver, brain, kidney and inflammatory diseases of the joints, people with bleeding disorders, gastrointestinal bleeding, Asthma, glaucoma, cataracts and diabetics), patients weighing more than 100 kg, patients with neuropathic pain and sensory disturbances in the legs, people with a history of knee surgery are excluded from the study.
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Intervention groups
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In a group of patients, a cocktail containing betamethasone (betamethasone, Tranexamic acid, bupivacaine and ketorolac) is injected into the right knee, and a betamethasone-free cocktail (Tranexamic acid, bupivacaine and ketorolac) is injected into the left knee; In the other group, the opposite is true.
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Main outcome variables
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Pain score; Knee range of motion; Oxford pain score; Patients' satisfaction with pain relief; Wound complications