Clinical Study
Minimally Invasive TLIF Using Unilateral Approach and Single Cage at Single Level in Patients over 65
| Claudication | Preoperative (%) | Postoperative (%) |
| Severe (0–20 min) | 60.53 (23/38) | 0 (0/38) | Moderate (20–40 min) | 2.63 (1/38) | 0 (0/38) | Mild (40–60 min) | 0 (0/38) | 5.26 (2/38) | None | 36.84 (14/38) | 94.74 (36/38) |
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