Abstract
As we are faced with an aging society, the number of cases of pyogenic spondylitis is increasing, as well as compromised hosts, diabetic patients and those requiring long-term artificial dialysis, and cancer treated by chemotherapy. Patients suffering from lumbago with high fever are not diagnosed as pyogenic spondylitis until they consult an orthopedic doctor. This situation is showing an increasing tendency. We encountered 100 cases of pyogenic spondylitis in the 9 years from 2001 to 2009. We achieved good results by conservative therapy.