The results of disc height measurement.
| Group | Anterior disc height (mm) | Posterior disc height (mm) | Disc diameter (mm) | Farfan index (%) | DHR | DHR rate (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post | Last | P | Post | Last | P | Post | Last | P | Post | Last | P | |||
| With Intradiscal Leakage | 8.11±2.50 | 5.62±2.11 | <0.001 | 4.24±1.15 | 2.92±0.93 | <0.001 | 38.75±4.57 | 38.77±4.64 | 0.881 | 31.87±8.01 | 22.68±7.20 | <0.001 | 9.19±2.89 | 29.39±7.90 |
| Without Intradiscal Leakage | 8.49±3.23 | 7.39±2.99 | <0.001 | 4.19±1.92 | 3.66±1.75 | <0.001 | 40.71±4.30 | 40.66±4.31 | <0.001 | 30.51±8.77 | 26.63±8.12 | <0.001 | 3.88±2.70 | 12.75±8.18 |
| Between Group P | 0.865 | 0.006 | 0.194 | 0.096 | 0.102 | 0.128 | 0.283 | 0.036 | <0.001 | <0.001 | ||||
Abbreviations: pos, one day after surgery (baseline); last, last follow-up; DHR, disc height reduction; DHR rate, disc height reduction rate.