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Unilateral infective sacroiliitis in a boy presenting with a limp
  1. Reeya Patel1,
  2. Mohammed Monem2,
  3. Tamer Sherief3
  1. 1 Surgery, UCLH, London, UK
  2. 2 Otolaryngology, East and North Hertfordshire NHS Trust, Stevenage, UK
  3. 3 Lister Hospital, London, UK
  1. Correspondence to Dr Reeya Patel, reeya.patel{at}, reeya.patel09{at}


A 9-year-old boy admitted to a district general hospital with a 1-week history of fever and a 2-day history of right hip pain. Initial workup revealed raised inflammatory markers and unremarkable imaging studies. After clinical review, there was minimal improvement of the patient’s condition 5 days after presentation; therefore, an MRI of the pelvis/hips was carried out, which supported a clinical diagnosis of right-sided infective sacroiliitis. Infective sacroiliitis is rare and only represents 1%–2% of septic arthritis in children. The condition still remains a diagnostic challenge first due to poor localisation of symptoms with referred pain to the hip, thigh and lower back and second due to a lack of awareness by non-specialist clinicians. Early diagnosis is a key to avoid sequelae such as an abscess, degenerative changes of the sacroiliac joint and can be achieved by a thorough clinical examination, monitoring inflammatory markers and MRI.

  • orthopaedics
  • bone and joint infections
  • infections

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  • Contributors RP: literature review, writing up of case report.

    MM: interpretation of data, reporting imaging, consenting patient’s NOK, reviewing case report and providing feedback.

    TS: reviewing case report and providing feedback.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.