To ensure that the patient, the main researcher, the surgeon and the statistician were unaware of what drug would be used postoperatively, dexamethasone (4 mg) and diclofenac sodium (50 mg) were prepared in capsules of the same color and size, stored in similar vials and coded as drug No. 1 or drug No. 2. The drugs used in different procedures were disclosed only after acquisition and analysis of all data. The randomization procedure will be performed by a researcher not involved in the evaluation of patients and surgeries, using sequentially numbered sealed envelopes. Each envelope had the combination of drugs to be used in the postoperative period, protocol 1 (with 1 drug) or protocol 2 (drug 2) and the side of surgery (right or left). For each enrolled patient, the researcher not involved in patient assessment and surgery opened the envelope, will inform the main researcher of the protocol to be used postoperatively, and the surgeon of the side to be operated. The second surgical procedure was performed on the contralateral side, using another medical protocol postoperatively, with an interval of two months between procedures. Thus, the patient, the surgeon and the main researcher did not know which medical protocol would be used postoperatively.