Table 2 Characteristics of LLIF Procedure of 70 Functional Spinal Segments

Spinal Levels

L1–2

4

L2–3

9

L3–4

17

L4–5

40

No. Levels

1

32

2

18

3

12

4

8

Instrumentation

Unilateral

17

Bilateral

53

Average OR time (min)

107.2 ± 22.8

Average EBL (ml)

143.0 ± 71.9

Cage Height (mm)

11

34

13

36

Cage Position

Anterior

48

Posterior

22

Cage Right-Left Width (mm)

50

46

55

24

Postoperative Hospital Stays (days)

5.1 ± 3.2