Table 3.
Net and percent improvement of clinical scores 1‐year postoperatively, stratified by preoperative diagnosis
| Clinical scores | Net improvement (points, mean ± SD) | Percent improvement (%, mean ± SD) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| DS | SS | ST | DF | DS | SS | ST | DF | ||
| ODI | 30.1 ± 14.5 | 32.6 ± 22.6 | 35.2 ± 16.3 | 25.8 ± 18.6 | 44.0 ± 19.5 | 44.8 ± 16.7 | 48.2 ± 14.9 | 30.9 ± 18.9 | |
| SF36 PCS | 18.0 ± 11.2 | 16.6 ± 11.4 | 20.8 ± 6.4 | 10.9 ± 8.2 | 44.7 ± 27.1 | 40.1 ± 28.5 | 53.8 ± 16.0 | 34.5 ± 30.2 | |
| JOA | LBP | 32.9 ± 41.0 | 60.0 ± 25.0 | 53.6 ± 54.5 | 53.6 ± 31.2 | 25.0 ± 79.8 | 68.8 ± 28.8 | 74.5 ± 42.1 | 65.5 ± 32.3 |
| BPEQ | LF | 28.4 ± 32.8 | 27.5 ± 29.9 | 30.6 ± 30.2 | 32.3 ± 24.1 | 42.5 ± 49.5 | 40.2 ± 42.6 | 47.1 ± 51.9 | 66.4 ± 32.7 |
| WA | 68.6 ± 35.6 | 70.0 ± 21.0 | 70.2 ± 25.6 | 49.1 ± 31.0 | 72.4 ± 67.9 | 71.8 ± 20.1 | 83.4 ± 42.1 | 84.6 ± 35.1 | |
| SLF | 47.6 ± 23.5 | 40.0 ± 24.1 | 42.8 ± 21.7 | 32.7 ± 10.4 | 72.8 ± 23.4 | 55.8 ± 33.2 | 65.0 ± 31.1 | 75.0 ± 15.9 | |
| MH | 32.8 ± 26.3 | 27.1 ± 30.1 | 38.6 ± 17.1 | 18.7 ± 19.1 | 38.2 ± 50.7 | 35.0 ± 38.6 | 43.8 ± 34.9 | 37.7 ± 43.1 | |
| VAS | LBP | 4.6 ± 2.7 | 4.8 ± 3.5 | 5.4 ± 2.3 | 4.4 ± 1.5 | 62.8 ± 28.7 | 72.3 ± 22.7 | 71.5 ± 23.0 | 54.1 ± 19.1 |
| Rp | 6.7* ± 1.8 | 5.7* ± 2.1 | 5.6 ± 1.7 | 3.4* ± 1.3 | 81.8* ± 17.2 | 78.2* ± 20.5 | 76.4 ± 20.6 | 47.6* ± 22.5 | |
*
DF group showing less improvement in radiating pain VAS, compared to DS and SS groups. (P < 0.05 in one‐way ANOVA with post‐hoc Tukey test.)
LBP, low back pain; LBP, low back pain; LF, lumbar function; MH, mental health; ODI, Oswestry disability index; PO 1yr, postoperative 1 year; Rp, radiating pain; SD, standard deviation; SF36 PCS, short‐form 36 health survey physical component score; SLF, social life function; SS, spondylolytic spondylolisthesis; ST, spinal stenosis; VAS, visual analogue scale; WA, walking ability.