Table 3.
Patient-Reported Outcome Measures of 84 Patients Who Underwent Lumbar Fusion Surgery for Back Pain and Degenerative Disc Disease.
| Outcome | Before surgery | After lumbar fusion surgery at 12 months of follow-up | ||||||
|---|---|---|---|---|---|---|---|---|
| n | Mean (SD) | n | Mean (SD) | Change (SD) | p-value | MCID | % achieved MCID | |
| NPRS back pain | 84 | 7.6 (1.8) | 84 | 3.9 (2.6) | -3.7 (2.6) | <0.001 | 1.2 22 | 77% |
| ODI | 84 | 48.2 (14.1) | 84 | 30.9 (20.7) | -17.3 (16.6) | <0.001 | 12.8 22 | 61% |
| SF12 PCS | 84 | 31.4 (8.7) | 84 | 41.6 (10.7) | 10.3 (9.6) | <0.001 | 3.3 29 | 65% |
| SF12 MCS | 84 | 46.4 (7.9) | 84 | 49.5 (8.5) | 3.1 (8.3) | <0.001 | 3.8 29 | 40% |
NPRS = Numerical Pain Rating Scale; ODI = Oswestry Disability Index; SF12 = Short Form 12; PCS = Physical Component Summary; MCS = Mental Component Summary; SD = standard deviation; MCID = Minimum Clinically Important Difference.