Table 4 Preoperative and postoperative values of anterior and posterior disc height at L3-L4 and L4-6 after L5-S1 TDR
ADH L4-5 after TDR L5-S1 | PDH L4-5 after TDR L5-S1 | ADH L3-4 after TDR L5-S1 | PDH L3-4 after TDR L5-S1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Baseline | 6 weeks | 3 years | Baseline | 6 weeks | 3 years | Baseline | 6 weeks | 3 years | Baseline | 6 weeks | 3 years | |
Mean (pixel) | 39.9 | 37.1 | 27.2 | 20.3 | 19.9 | 14.6 | 34.9 | 30.8 | 22.3 | 22.5 | 20.4 | 14.8 |
SD | 14.3 | 11.1 | 12.2 | 8.1 | 7.1 | 6.4 | 12.8 | 10.1 | 9.8 | 8.2 | 7.1 | 5.6 |
p | 1 | 0.1 | < 0.0001 | 1 | 0.7 | < 0.0001 | 1 | 0.01 | < 0.0001 | 1 | 0.05 | < 0.0001 |