Table 2.
Characteristics of patients undergoing minimally invasive spine surgery compared with traditional open approach surgery.
| Total (n = 255) | Open (n = 155) | MISS (n = 100) | p-value | |
|---|---|---|---|---|
| Age, mean ± SD | 44.1 ± 19.6 | 41.8 ± 17.9 | 47.7 ± 21.6 | 0.06 |
| Male, n (%) | 179 (70.2) | 113 (72.9) | 66 (66.0) | 0.26 |
| GCS, median, (range) | 15, (3–15) | 15, (3–15) | 15, (3–15) | 0.95 |
| ISS, mean ± SD | 26.0 ± 13.6 | 26.7 ± 13.9 | 25.0 ± 13.1 | 0.36 |
| Pulmonary Injury, n (%) | 93 (36.4) | 58 (37.4) | 35 (35.0) | 0.79 |
| Mech. ventilation (d), median, (range) | 3, (0–54) | 3, (0–54) | 3, (0–54) | 0.93 |
| Follow-up (wks), median, (range) | 24.1, (0.1–493.3) | 27.9, (0.3–493.3) | 20.9, (0.14–409.4) | 0.38 |
| Initial Neurologic Status, n (%) | ||||
| Complete | 67 (26.2) | 55 (35.5) | 12 (12.0) | <0.001* |
| Incomplete | 31 (12.2) | 26 (16.8) | 4 (4.0) | 0.001* |
| Intact | 153 (60.0) | 71 (45.8) | 82 (82.0) | <0.001* |
| Nerve Root | 1 (0.4) | 0 (0) | 1 (1.0) | 0.39 |
| Cauda Equina | 3 (1.2) | 3 (1.9) | 0 (0) | 0.29 |
| Mechanism of Injury, n (%) | ||||
| MVC | 118 (46.1) | 72 (45.9) | 46 (46.0) | 1.00 |
| Fall | 89 (34.8) | 53 (33.8) | 36 (36.0) | 0.69 |
| MCC/ATV | 26 (10.2) | 21 (13.4) | 5 (5.0) | 0.034* |
| Pedestrian Struck | 12 (4.7) | 5 (3.2) | 7 (7.0) | 0.22 |
| Othera | 11 (4.3) | 6 (3.8) | 5 (5.0) | 0.75 |
MISS indicates minimally invasive spine surgery; GCS, Glasgow Coma Scale; ISS, Injury Severity Score; Mech. ventilation, Mechanical Ventilation; MVC, Motor Vehicle Crash; MCC, Motor Cycle Crash; ATV, All Terrain Vehicle; *Statistical significance was determined with a p-value less than 0.05.
a
Other mechanisms include blunt trauma, crush injuries, and gunshot wounds.