Total spine and posterior fossa MRI screening in adolescent idiopathic scoliosis (177 cases)

MR Etemadifar, B Mobini, H Behtash, E Ameri

Abstract


Background: MRI screening for idiopathic scoliosis is controversial. Considering our clinical experiences, the results of MRI in all patients with idiopathic scoliosis were evaluated.
Methods: In a prospective clinical study, all neurologically normal patients with idiopathic scoliosis screened by posterior fossa and total spine MRI.
Results: After excluding 9 patients for mild neurological findings, in other 177 patients (132 female, 45 male), the average age and curve angle was 15±2 years and 59±17º (30 to 135º), respectively. Convexity was to right in 146 and to left in 31 cases. MRI was positive in 12 cases (6.8%). In 5 cases (2.8%), neurosurgical intervention was necessary prior to scoliosis surgery. There was no relation between age, sex, presence of pain or curve angle and positive MRI findings (P>0.05). Left convexity was significantly related to positive MRI findings (P=0.013). In males with left convex curves, the probability of positive MRI findings was 8.8 folds other patients.
Conclusion: Considering our results and other reported articles, it seems that routine MRI screening of all patients presenting as idiopathic scoliosis is necessary for detection of underlying pathologies.
Key words: Idiopathic Scoliosis, MRI, Spine Syrinx, Chiari

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