Table 1 Comparisons of demographic and surgical data between the DLS patients with and without PJK
Variables | PJK (n = 27) | No PJK (n = 95) | p value |
|---|---|---|---|
Age, mean (SD) | 64.33 ± 9.02 | 60.97 ± 7.99 | 0.063 |
Gender, N (%) | Â | Â | 0.052 |
 Male | 11 (40.7) | 21 (22.1) |  |
 Female | 16 (59.3) | 74 (77.9) |  |
BMI, mean (SD) | 26.72 ± 4.18 | 25.19 ± 3.61 | 0.064 |
Smoker, N (%) | Â | Â | 0.264 |
 Yes | 5 (18.5) | 10 (10.5) |  |
 No | 22 (81.5) | 85 (89.5) |  |
Alcohol abuse, N (%) | Â | Â | 0.521 |
 Yes | 6 (22.2) | 16 (16.8) |  |
 No | 21 (77.8) | 79 (83.2) |  |
Hypertension, N (%) | Â | Â | 0.789 |
 Yes | 11 (40.7) | 36 (37.9) |  |
 No | 16 (59.3) | 59 (62.1) |  |
Diabetes, N (%) | Â | Â | 0.537 |
 Yes | 4 (14.8) | 10 (10.5) |  |
 No | 23 (85.2) | 85 (89.5) |  |
LIV to sacrum | Â | Â | 0.423 |
 Yes | 16 (59.3) | 48 (50.5) |  |
 No | 11 (40.7) | 47 (49.5) |  |
T score, mean (SD) | − 1.96 ± 1.29 | − 1.59 ± 1.46 | 0.236 |
VBQ, mean (SD) | 3.58 ± 0.67 | 3.08 ± 0.54 | < 0.001 |
Levels of fusion, mean (SD) | 6.48 ± 1.45 | 6.12 ± 1.44 | 0.248 |
Mean follow-up, months | 48.96 ± 19.90 | 50.82 ± 17.46 | 0.637 |