At @ months after surgery , both the experimental and the control groups showed remarkable improvement in the International Prostatic Symptoms Scores ( @ + / - @ vs @ + / - @ ) , maximum urine flow rate ( -LSB- @ + / - @ -RSB- ml/s vs -LSB- @ + / -@ -RSB- ml/s ) , and residual urine ( -LSB- @ + / - @ -RSB- ml vs -LSB- @ + / - @ -RSB- ml ) , but with no significant differences between the two ( P > @ ) , and no significant differences were observed in postoperative complications ( P > @ ) .