Figure 3

Sequential changes in TUG time and MMSE/FAB total scores. The TUG time shows a statistical improvement at 3, 6, and 12 months after surgery (3M, 6M, 12M). The MMSE total score increased after surgery, but no statistical significance is observed. The FAB total score shows a significant improvement at 6 months. FAB total total score of Frontal Assessment Battery, MMSE total total score of the mini-mental state examination, TUG Timed Up and Go test.