Currently, assessing growth of EOS patients involves serial vertical spine height measurements on coronal radiographs.
The researchers examined measurement accuracy using six spine model alignments and clinical radiographs of 23 EOS patients. The study uncovered inter- and intrarater reliabilities via interclass coefficient analyses.
Here are five things to know:
1. The model assessment demonstrated significant accuracy with a 1.54 mm mean error and mean interclass coefficients of 0.999.
2. With increasing kyphosis, a progressive difference between the phantom vertical spine height measurement and sagittal spine length occurred.
3. Clinical radiographs’ interrater reliability interclass coefficients were about 0.981 and 0.804. Intrarater reliabilities were about 0.966 for the coronal radiograph and 0.826 for the sagittal radiograph.
4. The study found the mean clinical sagittal spine lengths were 177.5 mm and the vertical spine height measurements averaged 161.6 mm, indicating a 16 mm difference.
5. Researchers concluded the novel sagittal spine length radiographic measurement is “accurate, repeatable and complements the current growth assessments for EOS treatments.”
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