Degenerative Spondylolisthesis Is Associated with Low Spinal Bone Density: A Comparative Study between Spinal Stenosis and Degenerative Spondylolisthesis
Table 1
Patient demographics.
DDD
Spinal stenosis
Degenerative spondylolisthesis
value
Gender (m/f)
2 (29%)/5 (71%)
23 (41%)/33 (59%)
4 (22%)/14 (78%)
0.321
Age at DEXA
66 (4)
72 (6)
73 (6)
0.0342
Pain history
0.15
1 year
0 (0%)
10 (18%)
1 (6%)
1-2 years
1 (14%)
9 (16%)
7 (39%)
2 years
6 (86%)
37 (66%)
10 (56%)
Preoperative smoking
0.19
Nonsmoker
4 (57%)
34 (61%)
15 (83%)
Smoker
3 (43%)
22 (39%)
3 (17%)
Number of fused levels
0.0023
1
5 (71%)
10 (18%)
9 (50%)
2
1 (14%)
30 (54%)
8 (44%)
3
0 (0%)
15 (27%)
1 (6%)
4
1 (14%)
1 (2%)
0 (0%)
Additional neural decompression
<0.0014
None
6 (86%)
0 (0%)
0 (0%)
Laminotomy
1 (14%)
11 (20%)
4 (22%)
Laminectomy
0 (0%)
45 (80%)
14 (78%)
Preoperative walking distance (median/iqr)
500 (400)
200 (500)
200 (400)
0.815
Follow-up walking distance (median/iqr)
350 (4900)
2000 (8999)
1500 (1000)
0.246
Demographic parameters in the three diagnostic groups. DDD: degenerative disc disease.
When performing two-group comparison (spinal stenosis versus degenerative spondylolisthesis): 1 0.15, 2 = 0.82, 3 = 0.03, 4 = 0.81, 5 = 0.63, 6 = 0.26.
Values are mean (sd) or (%).
