Purpose: To describe our experience and operative technique for retroperitoneoscopic nephrectomy for pyonephrosis and to compare the results with those of open surgery.
Patients And Methods: Since October 1998, 23 successful retroperitoneoscopic nephrectomies for pyonephrosis were performed in our institution (Group A). These patients were compared with 23 patients, matched by age, sex, and body weight, who underwent classic lumbotomy for pyonephrosis (Group B).