Table 4 Changes in the degree of vertebral slippage and intervertebral space height before and after surgery in two groups (‾x ± s)
From: Application of RhBMP-2 in Percutaneous Endoscopic Posterior Lumbar Interbody Fusion
Groups | Cases | Intervertebral space height (mm) | The degree of vertebral slippage (%) | ||
|---|---|---|---|---|---|
| Â | Â | Preoperative | Postoperative 12 month | Preoperative | Postoperative 12 month |
RhBMP-2 group | 51 | 5.57 ± 2.30 | 12.70 ± 2.53*** | 52.74 ± 19.74 | 16.79 ± 4.29*** |
The control group | 51 | 5.68 ± 1.92 | 10.58 ± 2.30*** | 50.85 ± 14.93 | 24.21 ± 7.93*** |
t | Â | 0.262 | 4.428 | 0.545 | 5.877 |
P |  | 0.794 | < 0.001 | 0.587 | < 0.001 |