Journal of Orthopaedic Reports (Dec 2023)

Osteoid osteomas of the foot – A case series

  • Angela S.C. Faustino,
  • Michael Curran,
  • Evelyn P. Murphy,
  • Nuala McAuley,
  • Diane Bergin,
  • Stephen R. Kearns

Journal volume & issue
Vol. 2, no. 4
p. 100207

Abstract

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Background: Osteoid osteoma accounts for 5% of bone tumours. Uncommon in the foot, although with predisposition for the talus. Methods: Retrospective review of four cases of osteoid osteoma in the foot and ankle with focus on investigation and management. Results: Equal male to female ratio. Mean age of 29.5 (±21.3). Nocturnal pain was present in 100% of cases. Three patients have had definitive treatment with resection. Mean time to diagnosis was 67 weeks (±65), and to treatment 46 weeks (±35). Diagnosis was established on imaging and histology, with sizes from 6mm to 15mm. The mean pre intervention Foot and Ankle Outcome Scores was 45%, improved to post intervention of 97%. Mean follow up time 17.6 months (±16). Conclusion: Osteoid osteomas are a challenging diagnosis. Remains an important differential in longstanding foot pain with minimal or no history of trauma. Treatment options include ablation or surgical resection. Level of evidence: IV.

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