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Background:

The purpose of this study was to compare the outcomes of the SHILLA GROWTH GUIDANCE SYSTEM and “intermittent distraction growing rod”(IDGR) in the treatment of children (less than 10 y of age) with progressive spinal deformity. This was a multicenter retrospective study of the SHILLA used as an alternative treatment to IDGR to support an HDE submission for Food and Drug Administration approval.

Methods:

Inclusion criteria were progressive scoliosis in a patient less than 10 years of age at index procedure. The study population consisted of 19 SHILLA and 6 IDGR patients whose mean age was 6.1 and 5.8 years, respectively. Group demographics were similar between the 2 groups.

Results:

The initial major curve magnitude was 70.3 degrees for SHILLA and 68.3 degrees for IDGR, which decreased postoperatively to 22.4 degrees (68.1% improvement) and 32.2 degrees (52.9% improvement …