App for Automated Clustering Technique (ACT) for Early Onset Scoliosis

By Girish Viraraghavan, MS; Patrick J. Cahill, MD; Michael G. Vitale, MD; Brendan A. Williams, MD; Pediatric Spine Study Group; Sriram Balasubramanian, PhD

1,170 EOS patients retrospectively selected from the Pediatric Spine Study Group (PSSG) database were used for the clustering analyses. The clinical indices used for the automated Fuzzy C-means clustering analysis were age, major curve (Cobb) angle, kyphosis, number of levels involved in the major curve, number of levels involved in kyphosis, and deformity index (defined as the ratio of major curve (Cobb) angle and kyphosis).

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