16 March 2024: Clinical Research
Retrospective Study to Compare the Effectiveness of Minimally Invasive Microscopic Unilateral Laminotomy with Microscopic Bilateral Laminotomy for Bilateral Decompression in the Early Postoperative Period in 142 Patients with Single-Level Lumbar Spinal Stenosis
Bülent Gülensoy 1ABFG* , Serkan Şimşek 2DEDOI: 10.12659/MSM.943815
Med Sci Monit 2024; 30:e943815
Table 1 Summary of patient characteristics and outcomes with regard to surgical approach.
| Surgery | ||
|---|---|---|
| ULBD (n=94) | BLBD (n=58) | |
| Age, years | 67.68±9.93 | 66.09±12.32 |
| Sex | ||
| Female | 62 (65.96%) | 35 (60.34%) |
| Male | 32 (34.04%) | 23 (39.66%) |
| Smoking | 22 (23.40%) | 15 (25.86%) |
| Diabetes mellitus | 30 (31.91%) | 20 (34.48%) |
| Level | ||
| L1–L2 | 1 (1.06%) | 1 (1.72%) |
| L2–L3 | 7 (7.45%) | 9 (15.52%) |
| L3–L4 | 26 (27.66%) | 14 (24.14%) |
| L4–L5 | 50 (53.19%) | 25 (43.10%) |
| L5–S1 | 10 (10.64%) | 9 (15.52%) |
| Visual Analog Scale score | ||
| Baseline | 7 (6–8) | 7 (6–8) |
| Day 10 | 2 (1–3) | 2 (1–2) |
| (within groups) | ||
| Decrease | 5 (5–6) | 5 (4–6) |
| Walking distance | ||
| Baseline | ||
| 0–100 m | 38 (40.43%) | 22 (37.93%) |
| 101–1000 m | 56 (59.57%) | 36 (62.07%) |
| >1000 m | 0 (0.00%) | 0 (0.00%) |
| Day 10 | ||
| 0–100 m | 2 (2.13%) | 0 (0.00%) |
| 101–1000 m | 49 (52.13%) | 30 (51.72%) |
| >1000 m | 43 (45.74%) | 28 (48.28%) |
| (within groups) | ||
| Improvement | 65 (69.15%) | 41 (70.69%) |
| Odom criteria | ||
| Baseline | ||
| Excellent | 0 (0.00%) | 0 (0.00%) |
| Good | 0 (0.00%) | 0 (0.00%) |
| Fair | 21 (22.34%) | 10 (17.24%) |
| Poor | 73 (77.66%) | 48 (82.76%) |
| Day 10 | ||
| Excellent | 0 (0.00%) | 0 (0.00%) |
| Good | 40 (42.55%) | 24 (41.38%) |
| Fair | 43 (45.74%) | 30 (51.72%) |
| Poor | 11 (11.70%) | 4 (6.90%) |
| (within groups) | ||
| Improvement | 74 (78.72%) | 52 (89.66%) |
| Wound site infection | 10 (10.64%) | 0 (0.00%) |
| Modified MacNab criteria | ||
| Excellent | 10 (10.64%) | 3 (5.17%) |
| Good | 54 (57.45%) | 37 (63.79%) |
| Fair | 30 (31.91%) | 18 (31.03%) |
| Poor | 0 (0.00%) | 0 (0.00%) |
| Back pain | 48 (51.06%) | 24 (41.38%) |
| Leg pain | 57 (60.64%) | 31 (53.45%) |
| Hip pain | 27 (28.72%) | 21 (36.21%) |
| Oswestry Disability Index score | ||
| Baseline | 45.01±10.50 | 46.99±10.66 |
| Day 30 | 21.52±6.64 | 23.72±6.42 |
| (within groups) | ||
| Decrease | 23.48±8.09 | 23.27±7.45 |
| Descriptive statistics were presented by using mean±standard deviation for normally distributed continuous variables, median (25–75 percentile) for non-normally distributed continuous variables and frequency (percentage) for categorical variables. BLBD – bilateral laminotomy for bilateral decompression; ULBD – unilateral laminotomy for bilateral decompression. | ||