Randomization and blinding
Randomization was performed by using an internet-based randomization program in a 1:1 ratio with random permuted blocks of sizes 2, 4, or 6 and was stratified by the surgical technique used (morcellation or resection). Treating physicians and patients were not blinded for the allocated treatment. However, the sonographer assessing the primary outcome 6 weeks postoperatively was blinded for the treatment arm and the surgical outcome.