The search for new safe and effective methods of pain relief after surgery on large joints is still an urgent problem. The most optimal approach in the treatment of postoperative pain is the use of multimodal analgesia with a different mechanism of action that act on various mechanisms of pain and can include opioids, nonsteroidal anti-inflammatory drugs (NSAIDs), acetaminophen, anticonvulsants, NMDA antagonists, alpha-2-agonists, and sodium and calcium channel blocking agents, as well as local anesthetics. NSAIDs are the most popular and safe means for pain relief. Therefore, a lot of efforts are aimed at increasing the effectiveness of NSAIDs use. The aim of this study was to evaluate the effectiveness of simultaneously administering two or three NSAIDs, compared to using only one NSAID, for pain relief after surgery on large joints such as hip or knee arthroplasty.
This is 6 days, randomized, double blind, parallel group, single-center study in 105 subjects. The distribution into groups was carried out by sequentially alternating the set into 4 groups celecoxib 400 mg orally daily, aspirin 100 mg and ketorolac 90 mg orally daily, ketorolac 90 mg and celecoxib 400 mg orally daily; aspirin 200 mg, ketorolac 90 mg and celecoxib 400 mg orally daily.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
105
Federal Center for Traumatology, Orthopedics and Endoprosthetics
Cheboksary, Chuvashskaya Respublika, Russia
Measuring postoperative pain using the visual analog scale for pain (VAS-P)
The patients choose the score on the 10 cm line scale with (VAS-P) rage from 0 ('no pain') to 10 (severe pain).
Time frame: 5 days
Arachidonic acid-stimulated platelet tests
Assessed by Multiplate ASPItest, Roche Diagnostics GmbH. The platelet aggregation expressed in arbitrary aggregation units (AU) multiplied by the recorded time in minutes (AU\*min).
Time frame: 5 days
Hemoglobin
Hemoglobin (HGB) level in g/L
Time frame: 5 days
Hematocrit
Hematocrit level in %
Time frame: 5 days
Erythrocytes
Erythrocytes (RBC) number in 1 litter
Time frame: 5 days
Platelets cells
Platelets cells (PLT) number in 1 litter
Time frame: 5 days
Fibrinogen
Fibrinogen level in g/L
Time frame: 5 days
Partial thromboplastin time
Partial thromboplastin time (PTT) in seconds
Time frame: 5 days
Prothrombin time
Prothrombin time in %
Time frame: 5 days
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