Effect on Post-operative Pain of Tranexamic Acid Injection During Shoulder Surgery

The dose will be 0.1 mg / kg (= 10 mg/kg) and diluted in a 100 mL infusion bag of sodium chloride. The product will have to be administered as a slow infusion over 10 minutes during the shoulder surgery.

Surgery with intravenous injection of Placebo (0.9% sodium chloride). A 100 mL infusion bag of sodium chloride will be administered as a slow infusion over 10 minutes during shoulder surgery.