Table VI.
Effects of release and decompression techniques through PTED on 37 CLDH patients.
| Time | Effectivea | Ineffectiveb | P-value (Fisher) |
|---|---|---|---|
| Before surgery | 0 | 37 | <0.05 |
| 3 months after surgery | 30 | 8 | <0.05 |
| 1 year after surgery | 32 | 5 | <0.05 |
| Last follow-up | 33 | 4 | <0.05 |
a
Effective, MacNab scores before and after surgery were excellent and good
b
ineffective, MacNab scores before and after surgery were fair or poor. CLDH, central lumbar disc herniation; PTED, percutaneous transforaminal endoscopic discectomy.