BACKGROUND: Unexplained wrist pain is a common presentation in children. To our knowledge, no studies have explored the clinical utility of magnetic resonance imaging (MRI) in the diagnostic workup of pediatric patients. METHODS: We retrospectively reviewed 307 consecutive wrist MRIs ordered at a tertiary-care pediatric hospital. Demographic data and the indication for imaging were recorded and grouped into admitting categories. The final impression of each MRI was scored with regard to potential impact on future treatment (0 = normal, 1 = minimal, 2 = moderate, 3 = high). Patients who went on to wrist surgery within 1 year were noted. RESULTS: In our cohort, 27% of all studies were normal, including 34% of those with pain. Although pain was the most common category, MRI was most useful in the delineation of a mass/cyst, evaluating for infection and evaluating arthropathy. Compared with all other categories, patients with pain were 3.6 times more likely to have a normal study and 4.6 times more likely to have a clinical score less than or equal to 1. Given an admitting diagnosis of pain, females were 1.7 times more likely to present for an MRI and 2.4 times more likely to have a normal MRI. The Spearman correlation revealed no linear relationship between age and MRI outcome. In all, 13% of patients went on to have surgery within 1 year of MRI. CONCLUSIONS: At our pediatric institution, the majority of wrist MRIs were ordered for wrist pain. Given our data, wrist MRI is not an ideal screening tool in children, particularly in those with wrist pain, and should only be used to exclude or confirm a specific diagnosis.
BACKGROUND: Unexplained wrist pain is a common presentation in children. To our knowledge, no studies have explored the clinical utility of magnetic resonance imaging (MRI) in the diagnostic workup of pediatric patients. METHODS: We retrospectively reviewed 307 consecutive wrist MRIs ordered at a tertiary-care pediatric hospital. Demographic data and the indication for imaging were recorded and grouped into admitting categories. The final impression of each MRI was scored with regard to potential impact on future treatment (0 = normal, 1 = minimal, 2 = moderate, 3 = high). Patients who went on to wrist surgery within 1 year were noted. RESULTS: In our cohort, 27% of all studies were normal, including 34% of those with pain. Although pain was the most common category, MRI was most useful in the delineation of a mass/cyst, evaluating for infection and evaluating arthropathy. Compared with all other categories, patients with pain were 3.6 times more likely to have a normal study and 4.6 times more likely to have a clinical score less than or equal to 1. Given an admitting diagnosis of pain, females were 1.7 times more likely to present for an MRI and 2.4 times more likely to have a normal MRI. The Spearman correlation revealed no linear relationship between age and MRI outcome. In all, 13% of patients went on to have surgery within 1 year of MRI. CONCLUSIONS: At our pediatric institution, the majority of wrist MRIs were ordered for wrist pain. Given our data, wrist MRI is not an ideal screening tool in children, particularly in those with wrist pain, and should only be used to exclude or confirm a specific diagnosis.
Authors: Jeroen J Nikken; Edwin H G Oei; Abida Z Ginai; Gabriel P Krestin; Jan A N Verhaar; Arie B van Vugt; M G Myriam Hunink Journal: Radiology Date: 2005-01 Impact factor: 11.105
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