Abstract
Sacral stress fracture and sacroiliitis are two conditions that present with pain. Sacral stress fractures are a rare cause of lumbar and hip pain. Sacral insufficiency fractures are a type of sacral stress fractures. Sacroiliitis represents inflammation of the sacroiliac joints. Coexistence of sacroiliitis and sacral insufficiency fracture (SIF) has not been reported before. Case 1: A 39-year-old woman reporting inflammatory back pain. Imaging revealed bilateral chronic sacroiliitis and bilateral SIF. Case 2: A 31-year-old woman presenting with left hip and inguinal pain. Imaging revealed left sacroiliitis and ipsilateral SIF. Calcium and vitamin D supplementation together with nonsteroidal anti-inflammatory drug (NSAID) treatment were given. Sulfasalazine was added to the treatment of the second patient who developed peripheral arthritis during follow-ups. Early diagnosis is best made with magnetic resonance imaging (MRI) since roentgenograms may be negative initially. Furthermore, MRI findings of both entities share common features leading to a diagnostic dilemma. Interpretation of radiological findings assisted by detailed history and clinical findings is crucial for diagnosis and treatment.
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Memetoğlu, O.G., Ozkan, F.U., Boy, N.S. et al. Sacroiliitis or insufficiency fracture?. Osteoporos Int 27, 1265–1268 (2016). https://doi.org/10.1007/s00198-015-3363-z
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DOI: https://doi.org/10.1007/s00198-015-3363-z