Table 2.
Reported radiographic parameters in the hybrid stabilization device and interspinous process device groups.
| Authors, years |
Pre-op DD grading | X-ray DH at dynamic level |
MRI grading at dynamic level |
X-ray disc height at one level above |
Global lumbar lordosis |
Instrumented lumbar lordosis |
Segmental motion at index level |
Segmental motion at supra-adjacent level |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X-ray | MRI | Pre-op | Post-op | Final | Pre-op | Final | Pre-op | Post-op | Final | Pre-op | Post-op | Final | Pre-op | Post-op | Final | Pre-op | Post-op | Final | Pre-op | Post-op | Final | |
| Formica et al. [13], 2015 | DH/VBH | Pfirrmann | I to III | 0.278 (0.032) |
0.282 (0.027) |
0.269 (0.041) |
49.56 (7.38) |
56.57 (7.34) |
56.9 (7.21) |
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|
| ||||||||||||||||||||||
| Putzier et al. [14], 2010 | Modic | I | ||||||||||||||||||||
|
| ||||||||||||||||||||||
| Imagama et al. [15], 2009 | Middle third | Pfirrmann | 10 (2.1) |
9.8 (2.3) |
III to V | Progressed one grade in 4 pts |
9.9 (1.6) |
9.4 (2.2) |
42 (15) |
45 (14) |
7.9 (4.3) |
4.6 (3.8) |
6.7 (2.7) |
7.2 (3.1) |
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|
| ||||||||||||||||||||||
| Lu et al. [16], 2015 | Pfirrmann | Mean Gr. 2.9 I: 6, II: 16 III: 16, IV: 14 |
40. 6 | 36.2 | 35/49 (71%) maintained pre-op F/E motion |
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|
| ||||||||||||||||||||||
| Lee et al. [17], 2013 | Foraminal | Foraminal height | 5.9 | 6.5 | 4.9 | |||||||||||||||||
| height | 21.3 | 24.4 | 21.6 | (1 yr) | ||||||||||||||||||
|
| ||||||||||||||||||||||
| Korovessis et al. [18], 2009 | DH (ant.) DH (post.) UCLA+ |
11.9 (ant. DH) |
13.8 (1 yr) |
12 | ||||||||||||||||||
| 7.7 (post. DH) |
8.2 (post-op) |
7.9 | 39.7 | 40.9 (1 yr) |
42.8 | 5 | 4.8 (1 yr) |
4.5 | ||||||||||||||
| (Estimated from figures) | (Estimated from figures) | (Estimated from figures) | ||||||||||||||||||||
Blank in the each column meant not mentioned by the authors. UCLA+: University of California at Los Angeles (UCLA) grading scale. The values in the parentheses were standard deviation, deg.: degenerative, pre-op: preoperative, post-op: postoperative, and F/E: flexion/extension.
DD: disc degeneration, ant.: anterior, post.: posterior, DH: disc height, VBH: vertebral body height, and pt: patients.