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Ischial osteoid osteoma: A cause of persistent hip pain in an adolescent patient with bilateral femoroacetabular impingement.

  • Author(s): Mortensen, Alexander J;
  • Groundland, John S;
  • Tomasevich, Kelly M;
  • Hobson, Taylor E;
  • Randall, R Lor;
  • Aoki, Stephen K
  • et al.
Abstract

A 15-year-old boy presented with left-sided hip pain and imaging consistent with the diagnosis of femoroacetabular impingement. Following hip arthroscopy, which included an osteochondroplasty, labral repair, and capsular repair, the patient's anterior hip pain improved. However, his deep aching hip pain persisted until an ischial osteoid osteoma was identified and treated with radiofrequency ablation. At 3 years follow-up, the patient reports high satisfaction and minimal pain. We present this case to illustrate the importance of considering all potential causes of persistent hip pain following hip arthroscopy, including benign bone tumors which may be difficult to visualize on plain radiographs.

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