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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Spine (Phila Pa 1976). 2014 Dec 1;39(25):2070–2077. doi: 10.1097/BRS.0000000000000641

Figure 3.

Figure 3

(A) Predicted probability of clinically significant improvement in SF-36 PCS scores by postoperative C2-C7 SVA measurements. Fewer than 50% of patients with postoperative sagittal balance of greater than 40mm are predicted to experience clinically significant improvement after surgery for CSM. (B) Two-way scatter plots of change in SF-36 PCS scores from baseline to one year postoperatively stratified by dorsal and ventral approach demonstrating that patients who were treated with dorsal approaches and who had positive sagittal imbalance tended to have less improvement in SF-36 PCS score.