Minimally invasive trans-sacral approach to L5-S1 interbody fusion: Preliminary results from 1 center and review of the literature

W. Daniel Bradley; Michael S. Hisey; Sunita Verma-Kurvari; Donna D. Ohnmeiss

doi:10.1016/j.ijsp.2011.12.005

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Fig. 1
VAS scores assessing back and leg pain both improved significantly (P < .01, paired t test).

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Table 1

Overview of patient population and procedures

	Data
Gender
Male	18 (43.9%)
Female	23 (56.1%)
Mean age (yr)	47.0 (range, 14–68)
Mean BMI	28.6 (range, 18.3–37.7)
Smoker	15 (36.6%)
Prior lumbar surgery	14 (34.1%)
Procedure
Single-level AxiaLIF + PLF	28 (68.3%) (1 uninstrumented)
Single-level AxiaLIF only	5 (12.2%)
Single-level AxiaLIF + PLF ≥1 level	3 (7.3%)
2-level AxiaLIF + PLF	4 (9.7%)
AxiaLIF + PLF (L5-S1) + XLIF + PLF (L4-5)	1 (2.4%)
Mean clinical follow-up (mo)	22.2 (range, 6–43)
Mean radiographic follow-up (mo)	16.6 (range, 4–38)

Abbreviation: XLIF, extreme lateral interbody fusion.

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Table 2

Perioperative data for primary group (single-level AxiaLIF with PLF) and secondary group (AxiaLIF without PLF and surgeries involving levels other than L5-S1)

	Primary group (n = 28)	Secondary group (n = 13)
Operative time (min)	125.2 (72–212)	157.0 (59–307)
Interbody blood loss (mL)	28.3 (10–100)	30.8 (10–100)
Posterior blood loss (mL)	36.0 (10–150)	116.3 (10–400)
Length of stay (d)	1.6 (0–13^*)	1.7 ( 1–3)

NOTE. Values provided are mean (range).
↵* Length of stay was extended for patient with rectal tear; otherwise, the mean was 1.2 days, with a range from 0 to 3 days.