Endoscopically controlled surgery with open hemilaminectomy for the treatment of intradural extramedullary tumors: an operative technique and short-term outcomes of 20 consecutive cases

Table 3 American spinal injury association impairment scale (AIS)

Patient	Preoperative	Discharge	Latest follow-up
1	E	E	E
2	E	E	E
3	D	D	D
4	D	D	D
5	D	D	E
6	C	D	D
7	E	E	E
8	D	D	E
9	D	D	D
10	B	B	B
11	E	E	E
12	D	D	E
13	D	D	D
14	E	E	E
15	C	C	D
16	C	C	D
17	B	B	C
18	E	E	E
19	D	D	D
20	E	E	E

ISSN: 2057-4967

Patient	Preoperative	Discharge	Latest follow-up
1	E	E	E
2	E	E	E
3	D	D	D
4	D	D	D
5	D	D	E
6	C	D	D
7	E	E	E
8	D	D	E
9	D	D	D
10	B	B	B
11	E	E	E
12	D	D	E
13	D	D	D
14	E	E	E
15	C	C	D
16	C	C	D
17	B	B	C
18	E	E	E
19	D	D	D
20	E	E	E

Patient	Preoperative	Discharge	Latest follow-up
1	E	E	E
2	E	E	E
3	D	D	D
4	D	D	D
5	D	D	E
6	C	D	D
7	E	E	E
8	D	D	E
9	D	D	D
10	B	B	B
11	E	E	E
12	D	D	E
13	D	D	D
14	E	E	E
15	C	C	D
16	C	C	D
17	B	B	C
18	E	E	E
19	D	D	D
20	E	E	E

Patient	Preoperative	Discharge	Latest follow-up
1	E	E	E
2	E	E	E
3	D	D	D
4	D	D	D
5	D	D	E
6	C	D	D
7	E	E	E
8	D	D	E
9	D	D	D
10	B	B	B
11	E	E	E
12	D	D	E
13	D	D	D
14	E	E	E
15	C	C	D
16	C	C	D
17	B	B	C
18	E	E	E
19	D	D	D
20	E	E	E