Fig. 4From: Improvement of vertebral body fracture reduction utilizing a posterior reduction tool: a single-center experienceCourse of the SI over the three measurement time points. Initially, the SI was corrected by surgery in both groups. Postoperatively, however, there was a loss of correction. In four patients (three of the IG and one of the CG), the anterior cortex was slightly over-distracted compared to the posterior cortex, resulting in an SI > 1Back to article page