Table 2 Comparison of surgical results with endoscopic bilateral decompression for lumbar spinal stenosis

Komp et al. [14], 2011

74

24

44

–

subjective satisfaction 86.5%

transient dysesthesia 5;

urinary retention 2;

dural tear 2;

revision surgery 2

other 1;

Eum et al. [24], 2016

58

13.8

68.9

–

good-to-excellent 83% (25/30)

dural tear 2

Postop headache 3

Transient leg numbness 2

Postop hematoma 1

Conversion to open surgery 3

Torudom et al. [25], 2016

30

24–36

98.3

3.16

good-to-excellent 81.0% (47/58)

transient paresthesia 2

Revision surgery 1

Kim et al. [26], 2017

48

7.75

–

–

good-to-excellent 96% (46/48)

Dural tear 3

Revision surgery 2

Conversion to open surgery 1

Lee et al. [27], 2018

213

26.45

105.3

2.45

good-to-excellent 93.8% (200/213) (46/48)

transient dysthesia12

motor weakness 3

dural tear 6

Reoperations 2

Present study

47

13.6

116.4

2.6

good-to-excellent 97.9% (46/47)

Transient paresthesia 3

Dural tear 2