Report in English with a French summary - KCE

22 Spine technology KCE reports vol.39
(VAS) in all trials, but in two studies a score of 10 represented maximum pain 85, 87 , in
another study a score of 100 was used for maximum pain 73 , and in a fourth study a
score of 100 was used for minimum pain 84 . For one study it was unclear what score
represented maximum pain 88 . New fractures were defined as a height reduction of at
least 20% in 2 studies 84, 88 , the three other studies did not provide a definition 73, 85, 87 .
Cement leakage was reported in only two studies 84, 85 .
Pain
Compared to conservative treatment, balloon kyphoplasty improved pain scores
significantly at 6 months 73, 84 (figure 3) and at 12 months postoperative 84 . Balloon
kyphoplasty also significantly improved pain scores at 12 months postoperative
compared to vertebroplasty in the study of Grohs et al. 85 , but not in the study of
Pflugmacher et al. 87 (figure 4). Diamond et al. did not find a difference in pain scores
between vertebroplasty and conservative treatment at 2 years of follow-up 86 .
Figure 3 : Decrease in pain score (measured on a VAS with 10 = maximum
pain) at 6 months vs. baseline for balloon kyphoplasty vs. conservative
treatment.
Figure 4 : Decrease in pain score (measured on a VAS with 10 = maximum
pain) at 12 months vs. baseline for balloon kyphoplasty vs. vertebroplasty.