A Minimally Invasive Endoscopic Surgery for Infectious Spondylodiscitis of the Thoracic and Upper Lumbar Spine in Immunocompromised Patients

Table 4

Back pain level before and after surgery.

Patient number	Visual analog scale (0–10)			Complication
	Preop	Postop 1 m	Postop 3 m
1	10	5	2	Nil
2	9	4	2	Nil
3	10	5	3	Nil
4	10	4	1	Nil
5	10	5	4	Nil
6	10	5	3	Nil
7	10	4	3	Nil
8	9	5	1	Nil
9	9	4	3	Nil
10	10	5	4	Nil
11	8	1	1	Nil
12	8	3	2	Nil
13	7	3	1	Nil
Average	9.23	4.08	2.31
Standard deviation	1.01	1.19	1.11