Parameters before and after vertebroplasty and gain after vertebroplasty
| Parameter | Before | After | P Value† | Gain |
|---|---|---|---|---|
| Kyphosis angle, ° | ||||
| Total cases (n = 53) | 24.7 ± 12.2 (3.9, 65.9) | 20.5 ± 11.5 (0.1, 61.7) | <.001 | 4.3 ± 5.4 (−6.9, 17.7) |
| Nongas group (n = 19) | 21.1 ± 9.6 (3.9, 41.9) | 18.6 ± 9.6 (3.4, 35.4) | .018 | 2.4 ± 4.1 (−6.9, 10.0) |
| Gas group (n = 34) | 26.8 ± 13.1 (6.2, 65.9) | 21.5 ± 12.4 (0.1, 61.7) | <.001 | 5.3 ± 5.8 (−4, 17.7) |
| Wedge angle, ° | ||||
| Total levels (n = 73) | 16.0 ± 7.3 (3.1, 34.4) | 8.9 ± 6.2 (0.2, 29.7) | <.001 | 7.4 ± 6.7 (−3.6, 30.5) |
| Nongas group (n = 34) | 13.7 ± 6.3 (3.1, 29.1) | 9.6 ± 6.4 (0.2, 26.3) | <.001 | 4.1 ± 4.6 (−3.6, 22.1) |
| Gas group (n = 39) | 18.0 ± 7.6 (4.7, 34.4) | 7.7 ± 6.0 (0.2, 29.7) | <.001 | 10.2 ± 7.0 (−0.4, 30.5) |
| Height at A | ||||
| Total levels (n = 73) | 48.5 ± 18.4 (3.7, 90.0) | 65.2 ± 16.7 (21.6, 100) | <.001 | 16.7 ± 16.7 (−18.2, 63.8) |
| Nongas group (n = 34) | 57.0 ± 16.3 (21.1, 90.0) | 65.4 ± 14.8 (35.3, 95.8) | <.001 | 8.4 ± 12.5 (−18.2, 35.9) |
| Gas group (n = 39) | 14.0 ± 16.9 (3.7, 83.3) | 64.9 ± 18.3 (21.6, 100) | <.001 | 23.9 ± 16.7 (1.6, 63.8) |
| Height at C | ||||
| Total levels (n = 73) | 47.8 ± 15.8 (13.5, 85.6) | 62.3 ± 15.1 (29.8, 100) | <.001 | 14.5 ± 13.0 (−5.1, 61.4) |
| Nongas group (n = 34) | 56.6 ± 14.6 (13.5, 80.4) | 65.4 ± 15.0 (29.8, 100) | <.001 | 9.3 ± 9.1 (−2.1, 61.4) |
| Gas group (n = 39) | 40.6 ± 13.3 (15.1, 85.6) | 59.6 ± 14.9 (32.4, 88.9) | <.001 | 19.0 ± 14.3 (−5.1, 53.3) |
| Height at the P | ||||
| Total levels (n = 73) | 79.5 ± 12.9 (51.4, 113.0) | 86.6 ± 13.2 (59.3, 121.2) | <.001 | 7.2 ± 11.0 (−35.3, 48.6) |
| Nongas group (n = 34) | 83.2 ± 12.4 (52.9, 103.1) | 88.0 ± 11.3 (67.1, 114.8) | <.001 | 4.8 ± 10.2 (−35.3, 23.8) |
| Gas group (n = 39) | 76.2 ± 12.7 (51.4, 113.0) | 85.5 ± 14.7 (59.3, 121.2) | <.001 | 9.2 ± 11.4 (−6.2, 48.6) |
Note.—Data are the mean ± SD. Data in parentheses are the minimum, maximum.
* Heights at A, C, and P, were calculated as (A/NP) × 100%, (C/NP) × 100%, and (P/NP) × 100%, respectively, where A is the anterior border; C, center; P, posterior border; and NP, height of the posterior border of an adjacent normal vertebral body.
† For the comparison of preprocedural and postprocedural values with the paired-sample t test.