Patient 1

Patient 2

Patient 3

Sex

Female

Male

Male

Age (Years)

69

71

41

Duration and type of symptoms

10 years

NIC, walking distance < 100 m

5 years

NIC, walking distance 50 - 100 m

2 years

Radiating pain legs bilaterally

Treated level

L4-L5

L3-L4

L4-L5

Postoperative change in symptoms

1) Improvement in leg/back pain and increasing waking distance lasting for at least 1 year

1) Improvement in NIC symptoms for 2 years

2) Two months period of NIC symptoms

3) Most NIC symptoms decreased, remaining feet numbness

1) Almost full recovery leg/back

2) After 1,5 years gradually increasing symptoms leg/back

Wear of spinous processes

14.1 mm

(12 month postop)

10.0 mm

(11 month postop)

11.0 mm

(12 month postop)