Age |
Group 1 (≥ 70 years) |
29 |
31.5 |
Group 2 (≥ 60 to < 70 years) |
63 |
68.5 |
Primary tumor type |
Group I (low-growth grade) |
12 |
13.0 |
Group II (intermediate-growth grade) |
38 |
41.3 |
Group III fast-growth grade) |
42 |
45.7 |
Tomita stage |
Intravertebral (Types 1–3) |
4 |
4.3 |
Perivertebral involvement (Types 4–5) |
40 |
43.5 |
Adjacent vertebral involvement (Type 6) |
18 |
19.6 |
Multiple vertebral involvement (Type 7) |
30 |
32.5 |
Tomita score |
Group 1 (2–3 points) |
32 |
34.6 |
Group 2 (4–5 points) |
30 |
32.6 |
Group 3 (6–7 points) |
13 |
14.1 |
Group 4 (8–10 points) |
17 |
18.4 |
Tokuhashi score |
Group 1 (1–4 points) |
9 |
9.8 |
Group 2 (5–8 points) |
34 |
37.0 |
Group 3 (9–12 points) |
49 |
53.3 |
Re-Tokuhashi score |
Group 1 (1–8 points) |
19 |
20.7 |
Group 2 (9–11 points) |
36 |
39.1 |
Group 3 (12–15 points) |
37 |
40.2 |
Preoperative Frankel score |
Grade A |
2 |
2.2 |
Grade B |
4 |
4.3 |
Grade C |
17 |
18.5 |
Grade D |
19 |
20.6 |
Grade E |
50 |
54.3 |
Preoperative VAS score |
Group 1 (1–4) |
12 |
13.0 |
Group 2 (5–7) |
43 |
46.7 |
Group 3 (8–10) |
37 |
40.2 |
Preoperative Karnofsky score |
Group 1 (0–40) |
23 |
25.0 |
Group 2 (50–70) |
67 |
72.8 |
Group 3 (80–100) |
2 |
2.2 |
Overall |
92 |
100.0 |