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. Author manuscript; available in PMC: 2021 Oct 5.
Published in final edited form as: Spine Deform. 2017 Sep;5(5):314–324. doi: 10.1016/j.jspd.2017.02.004

Fig. 8.

Fig. 8.

Radiographs (PA) of major thoracic curvatures from two subjects, one whose curvature progressed (top) and one whose curvature corrected (bottom). Top: Progression. a) Three-month postoperatively radiograph showing implant placement with 29° curve. b) At 18 months postoperatively, two pairs of adjacent implants clearly moved apart from each other, with apparent bone growth between the implants (circled areas) and increase in curvature. Bottom: Correction. a) Radiograph showing immediately preoperative curvature of 36°. b) Six-month postoperative radiograph showing implant placement and curvature reduction to 25°. c) At 2 years postoperatively, curvature was corrected to 12°. In this case, implants remained tightly grouped.