Table 4 Comparison of UAS and LAS in the K-rod group between the surgical side and contralateral paraspinal muscle FCSA (−x ± s, cm2)
From: The effect of posterior lumbar dynamic fixation and intervertebral fusion on paraspinal muscles
| Â | UAS (cm2) | P value | LAS | P value | ||
|---|---|---|---|---|---|---|
Preoperative | postoperative | Preoperative | postoperative | |||
Surgical side | 5.31 ± 1.46 | 4.98 ± 1.62 |  | 7.47 ± 2.04 | 7.11 ± 1.81 |  |
Contralateral side | 5.42 ± 1.51 | 5.64 ± 1.60 |  | 7.66 ± 1.72 | 7.81 ± 1.78 |  |
Group×Rep |  |  | 0.001** |  |  | 0.015* |
Group | Â | Â | 0.446 | Â | Â | 0.452 |
Rep | Â | Â | 0.488 | Â | Â | 0.278 |