Between 1987 and 1999 we diagnosed and treated 110 patients with osteoid os
teoma. Sixty patients were younger than 20 years. One hundred and four pati
ents had characteristic pain at night. The mean duration of symptoms before
surgery was 16 months. One hundred and four symptomatic patients were trea
ted operatively with either wide resection or curettage. Ninety-one patient
s had immediate and complete relief of pain. The average follow-up was 2.5
years.