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Table 1 Patient characteristics, surgical information and outcome evaluation

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

Patient Sex Age Level Location Resection of Simpson grade Surgery duration (h) Blood loss (mL) Pathology
1 Female 67 L4 Ventrolateral   3.5 200 Schwannoma
2 Male 67 T12 Lateral   2.8 200 Schwannoma
3 Female 54 T7-T8 Ventrolateral II 5.5 400 Meningioma
4 Female 45 T11-T12 Posteriorly   4.3 200 Schwannoma
5 Female 49 T5-T6 Posteriolateral I 5 200 Meningioma
6 Female 23 T2-T3 Ventral I 4 200 Meningioma
7 Female 42 T6-T7 Ventrolateral   2.5 300 Schwannoma
8 Male 47 L5-S1 Lateral   4.5 300 Schwannoma
9 Male 58 T10 Ventrolateral   3 100 Schwannoma
10a Female 29 T9-T12 Ventrolateral   6.5 600 Neurofibromatosis
11 Female 33 T5 Ventrolateral II 2.4 200 Meningioma
12 Female 24 T2-T4 Posteriorly II 3.5 200 Meningioma
13 Male 47 T11-L1 Ventral   4 300 Schwannoma
14 Male 43 L4-L5 Posteriorly   2.2 100 Schwannoma
15 Male 28 T11-T12 Posteriorly   3.0 200 Schwannoma
16 Female 34 T3-T4 Ventrolateral II 4.5 250 Meningioma
17 Female 43 T9-T10 Posteriorly   2.5 300 Schwannoma
18 Female 37 L4-L5 Ventrolateral   2.5 150 Schwannoma
19 Male 58 T2 Posteriorly   3.0 300 Meningioma
20 Male 18 T9 Posteriorly   2.5 200 Schwannoma
  1. aThe patient with NF-2 had 3 lesions extending from T9-T12