Table 3.
Open Versus MIS Separated Out by Preoperative Opioid Usage in 172 Patients Who Underwent TLIF.
| Preoperative Opioid Use Group | Open (n = 47), n (%) | MIS (n = 26), n (%) | P a |
|---|---|---|---|
| 6-week follow-upb | 41 (87) | 17 (65) | .027 |
| 3-month follow-upb | 29 (63) | 8 (31) | .008 |
| 6-month follow-upb | 23 (50) | 5 (21) | .018 |
| Opioid-Naïve Group | Open (n = 61), n (%) | MIS (n = 37), n (%) | P |
| 6-week follow-upb | 29 (48) | 16 (43) | .68 |
| 3-month follow-upb | 9 (15) | 5 (14) | .87 |
| 6-month follow-upb | 2 (3.4) | 3 (8.1) | .31 |
Abbreviations: MIS, minimally invasive surgery; TLIF, transforaminal lumbar interbody fusion.
a Boldfaced P values indicate statistical significance (P < .05).
b Chi-square test performed.