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. 2014 Feb 12;472(6):1831–1838. doi: 10.1007/s11999-014-3499-8

Table 2.

Outcomes in patients with MIS versus open sacroiliac joint fusion

Outcome Open group (n = 22) MIS group (n = 22) p value*
Estimated blood loss (mL) 681.8 ± 479.0 40.5 ± 31.4 < 0.001
Length of surgery (minutes) 128.0 ± 27.9 68.3 ± 26.8 < 0.001
Length of hospital stay (days) 3.3 ± 1.1 2.0 ± 1.5 0.002
Postoperative ODI (points) 47.4 ± 21.7 52.0 ± 16.9 0.272

Values are expressed as mean ± SD; * Student’s t-test; MIS = minimally invasive surgery; ODI = Oswestry Disability Index.