title: Conservative treatment for patients with osteoid osteoma: a case series.
abstract: BACKGROUND
  Osteoid osteoma is one type of benign bone tumor that may respond to conservative treatment.
  
  
  METHODS
  A retrospective study of 11 patients with osteoid osteoma was performed. Initially, patients were treated with non-steroidal anti-inflammatories (NSAIDs), unless they continued to have intolerable pain, or if the patient requested surgical resection and radiofrequency ablation (RFA).
  
  
  RESULTS
  Conservative therapy was successful for five patients. Three patients were treated with NSAIDs and the mean duration of pain was 22 months. The other two patients went into remission without medication by 9 and 24 months, respectively. Four patients underwent surgery after an average of 12 months. Two patients were treated with RFA after 47 and 11 months, respectively.
  
  
  CONCLUSIONS
  Osteoid osteoma can be treated conservatively. Surgical resection and radiofrequency ablation should also be taken into consideration as an option when the results of conservative treatment are poor.
authors: Department of Orthopaedic Surgery, Nagoya City University, Nagoya, Aichi, Japan Department of Orthopaedic Surgery, Tosei General Hospital, Seto, Aichi, Japan hisakiaiba@yahoo.co.jp.
authors: Hisaki
authors: H
authors: Aiba
authors: Department of Orthopaedic Surgery, Nagoya City University, Nagoya, Aichi, Japan Department of Orthopaedic Surgery, Kanazawa University, Kanazawa, Japan.
authors: Katsuhiro
authors: K
authors: Hayashi
authors: Department of Orthopaedic Surgery, Nagoya City University, Nagoya, Aichi, Japan Department of Orthopaedic Surgery, Kanazawa University, Kanazawa, Japan.
authors: Hiroyuki
authors: H
authors: Inatani
authors: Department of Orthopaedic Surgery, Nagoya City University, Nagoya, Aichi, Japan.
authors: Yamada
authors: Y
authors: Satoshi
authors: Department of Orthopaedic Surgery, Tosei General Hospital, Seto, Aichi, Japan.
authors: Nobuyuki
authors: N
authors: Watanabe
authors: Department of Orthopaedic Surgery, Tosei General Hospital, Seto, Aichi, Japan.
authors: Hironari
authors: H
authors: Sakurai
authors: Department of Orthopaedic Surgery, Kanazawa University, Kanazawa, Japan.
authors: Hiroyuki
authors: H
authors: Tsuchiya
authors: Department of Orthopaedic Surgery, Nagoya City University, Nagoya, Aichi, Japan.
authors: Takanobu
authors: T
authors: Otsuka
mesh_terms: D000293:Adolescent; D000328:Adult; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000188:drug therapy* / Q000601:surgery; D017115:Catheter Ablation; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008297:Male; D008875:Middle Aged; D010017:Osteoma, Osteoid / Q000188:drug therapy* / Q000601:surgery; D012189:Retrospective Studies; D055815:Young Adult
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal
keywords: Conservative treatment; NSAIDs; non-steroidal anti-inflammatory drugs; osteoid osteoma