Anterograde urethrotomy, a new method for internal urethrotomy.

The authors elaborated a new device permitting to perform internal urethrotomy for urethral stricture in an anterograde way, even in cases where optical retrograde urethrotomy could not be applied. The new device is similar to a bladder biopsy forceps with a diameter of Ch 5. Its cutting knife is movable. It can be used with Sachse's urethrotome, inserting it in its guide channel with closed knife and passing it through the stricture. By opening the knife, anterograde urethrotomy can be performed. Out of 145 urethrotomies, this method was utilized in only 3 cases.