The value of perioperative prophylactic use of antibiotics in lumbar d
isc surgery is investigated, based on a retrospective study of the ope
rative results of 5041 patients. The rate of occurrence of postoperati
ve spondylodiscitis was significantly higher during the period in whic
h no perioperative prophylaxis was carried out, than it was during the
period, in which perioperative prophylaxis was routine. Thus the peri
operative prophylactic use of antibiotics seems highly recommendable.