Table 2.

Patient data

No.	Age/sex	Duration	Spinal level	Approach
1	23 F	5 days	Intramedullary, T 2/3	Laminectomy T 2-4
2	58 M	18 months	Intramedullary, C 2	Hemilaminectomy C 2
3	53 F	6 weeks	Extradural, L 1	Interlaminar fenestration L 1/2
4	61 M	3 years	Intramedullary C 1/2	Hemilaminectomy C 1
5	47 F	3 weeks	Intramedullary C 5	Laminectomy C 5
6	38 F	12 weeks	Intramedullary C 5	Laminoplasty C 4-6
7	44 F	1 year	Conus	Interlaminar fenestration T 12/L 1
8	77 F	2 months	Twelfth vertebral body	Laminectomy T 12
9	67 F	2 days	Intramedullary T 10	Hemilaminectomy T 10
10	42 F	4 years	Intramedullary T 1/2	Hemilaminectomy T 2
11	16 F	2 weeks	Intramedullary C 1/2	Laminoplasty C 1
12	63 F	12 weeks	Extradural T 3-7	Hemilaminectomy T 3-7
13	45 F	1 week	Intramedullary, T 3	Laminectomy T 3
14	17 F	2 weeks	Conus	Interlaminar fenestration T 12/L 1

No. patient number, Age in years, F female, M male, Duration duration of symptoms to admission, C cervical, T thoracal, L lumbar