From: A comparative study to evaluate the feasibility of preoperative percutaneous catheter drainage for the treatment of lumbar spinal tuberculosis with psoas abscess
Before surgery
The final follow-up
Group A (grades)
Group B (grades)
Grades
Group A
Group B
A
B
C
D
E
Grade A
0
Grade B
Grade C
6
4
2
Grade D
Grade E
26
24
Summation
36
32
34
30