Clinical Results of Minimally Invasive Spine Stabilization for the Management of Metastatic Spinal Tumors Based on the Epidural Spinal Cord Compression Scale
Table 2
Summary of perioperative factors and clinical results.
Characteristic
Group A (n=34)
Group B (n=22)
P value
Operative time, mean (SD), minutes
188.1 (74.7)
210.0 (57.4)
0.24
Blood loss, mean (SD), mL
269.8 (421.1)
436.7 (514.4)
0.19
Transfusion, yes, n (%)
6 (17.6)
6 (27.3)
0.29
No. of levels fused, mean (SD)
5.4 (1.9)
5.7 (1.8)
0.53
Posterior decompression, yes, n (%)
12 (35.3)
16 (72.7)
0.006
Perioperative complications, yes, n (%)
4 (11.8)
5 (22.7)
0.23
Epidural hemorrhage
1
2
Massive bleeding (>1500 ml)
0
1
peritonitis
0
1
Surgical site infection
0
1
Instrumentation failure
1
0
Deep vein thrombosis
1
0
Dural tear
1
0
Additional adjuvant therapy, yes, n (%)
Chemotherapy
27 (79.4)
10 (45.5)
0.009
Radiotherapy
19 (55.9)
14 (63.6)
0.56
Bone modifying agent
26 (76.5)
19 (86.4)
0.36
Postoperative ASIA classification, n (%)
A
1 (2.9)
1 (4.5)
0.15
B
0
1 (4.5)
C
3 (8.8)
4 (18.2)
D
8 (23.5)
9 (40.9)
E
22 (64.7)
7 (31.8)
Neurological improvement by at least 1 grade or maintenance of grade E, n (%)
23 (67.6)
9 (40.9)
0.048
Postoperative Barthel index, mean (SD)
87.9 (24.6)
68.8 (38.1)
0.04
Postoperative VAS, mean (SD)
1.6 (1.9)
2.3 (2.0)
0.21
Postoperative course, n (%)
Discharge to home
29 (85.3)
12 (54.5)
0.01
Transfer to hospice
5 (14.7)
5 (22.7)
0.44
In-hospital death
0
5 (22.7)
0.004
Revision surgery at local recurrence level, n (%)
1 (2.9)
0
0.60
ASIA, American Spinal Injury Association; VAS, visual analogue scale.
