Table 1 Demographic Characteristics of 202 Patients
Characteristics | Median (Interquartile Range) or Mean ± Standard Deviation or n (%) |
|---|---|
Age(years) | 69 (62–76) |
Sex male(%) | 144 (71.2) |
BMI | 23 (23–26) |
Duration of symptoms (months) | 48 (16–81) |
Smoker yes(%) | 33 (16.3) |
The types of lumbar spinal stenosis | |
Central | 9 (4.5) |
Lateral recess | 11 (5.4) |
Foraminal | 5 (2.5) |
Central + Lateral recess | 136 (67.3) |
Central + Foraminal | 41 (20.3) |
The symptoms of lower extremities | |
Unilateral | 37 (18.3) |
Bilateral | 165 (81.7) |
The most stenotic segment | |
L2–3 | 23 (11.4) |
L3–4 | 52 (25.7) |
L4–5 | 127 (62.9) |
Pre-operation | |
VAS of low back pain | 4.43 ± 1.16 |
VAS of leg pain | 6.60 ± 0.84 |
ODI | 44.66 ± 4.69 |
Claudication(m) | |
> 500(%) | 73 (36.1) |
201–500(%) | 25 (12.4) |
50–200(%) | 30 (14.9) |
< 50(%) | 74 (36.6) |
12 months post-operatively | |
VAS of low back pain | 1.99 ± 1.11a |
VAS of leg pain | 1.49 ± 0.82a |
ODI | 21.35 ± 3.79a |
Claudication(m) a | |
> 500(%) | 139 (68.8) |
201–500(%) | 46 (22.8) |
50–200(%) | 16 (7.9) |
< 50(%) | 1 (0.5) |