Table 2

Minimally invasive SI joint fusion procedure characteristics (n=102). Only the index side procedure is reported.

CharacteristicValue
Target joint, n (%)
 Right
 Left

55 (53.9%)
47 (46.1%)
Procedure time, minutes
 Mean (SD, range)
  < 30
 30-60
  > 60

44.9 (22.3, 14-140)
30 (29.4%)
50 (49.0%)
22 (21.6%)
Fluoroscopy time, minutes
 Mean (SD, range)
 0-1 min
 1-2 min
 2-5 min
  > 5 min

2.5 (3.6, 0.13-25)
17 (16.7%)
51 (50.0%)
21 (20.6%)
7 (6.9%)
Estimated blood loss, cc
 Mean (SD, range)
 0-50
 50-100
  > 100

32.7 (32.8, 0.5 – 250)
92 (90.2%)
9 (8.8%)
1 (1.0%)
Number of implants used, n (%)
 2
 3
 4

5 (4.9%)
93 (91.2%)
4 (3.9%)
Implant length, mm, mean (SD)
 First implant, n=102
 Second implant, n=102
 Third implant, n=97
 Fourth implant, n=4

50.5 (6.4)
45.4 (6.1)
43.8 (6.1)
42.5 (5.0)
Implant diameter, n (%)
 4 mm
 7 mm

2 (0.7%)
303 (99.3%)
Hospital length of stay, days
 Mean (SD, range)
 Discharged same day
 1-2
 3 or more

0.78 (0.97, 0-7)
42 (41.2%)
57 (55.9%)
3 (2.9%)