Article Figures & Data
Figures
- Figure 1
(A) Minimally invasive lateral access of the sacroiliac joint; (B) decortication of the joint (inset: user-interface of decorticator instrument); (C) delivery of bone graft into the actively bleeding fusion bed (inset: fluoroscopic image during decortication); and (D) final placement of the threaded implant through the area of decortication and a secondary device for stability.
- Figure 2.
Examples of bridging bone categories.
Tables
Fusion Category Description Fusion Presence of bridging across the treated joint No fusion No bridging bone visible or images were reported as “Indeterminate” or “Unable to Assess” Demographics N Summary Age at procedure, mean ± SD (range) 249 60.5 ± 12.8 (21–87) Female, % (n) 250 70.8% (177) BMI (kg/m2), mean ± SD (range) 250 30.1 ± 6.8 (17–56) Duration of SI joint pain, % (n) 250 6 months to 1 year 18.0% (45) 1–2 years 26.0% (65) >2 years 56.0% (140) Taking narcotics/opioids, % (n) 250 62.0% (155) Prior SI joint treatment, % (n) 250 Acupuncture 8.8% (22) Biofeedback 0% Bracing 30.0% (75) Chiropractic care 27.6% (69) Physical therapy 88.0% (220) Prior SI joint Fusion 8.0% (20) SI joint steroid injection 93.2% (233) Sacral nerve ablation 10.0% (25) TENS unit 22.4% (56) Prior lumbar spine procedures, % (n) 250 Lumbar total disc replacement 0% Lumbar decompression 13.2% (33) Lumbar discectomy 11.2% (28) Lumbar laminectomy 17.2% (43) Lumbar fusion 36.8% (92) VAS pain score, mean ± SD (range) 249 76.6 ± 11.9 (30–100) Oswestry Disability Index, mean ± SD (range) 249 54.5 ± 13.1 (18–92) EQ-5D, mean ± SD (range) 246 EQ-5D preference weights (formerly “time trade-off”) 0.52 ± 0.17 (−0.11–0.83) EQ-5D VAS (scale of 0 to 100) 60.22 ± 23.03 (0.00–100.00) SI, sacroiliac; VAS, visual analog scale.
Procedure Measure N Mean ± SD Range Procedure duration, min 248 54.2 ± 24.8 15–158 Total contrast used, cc 235 2.0 ± 8.0 0–100 Estimated blood loss, cc 249 53.9 ± 107.5 0–1500 Length of hospital stay, d 248 0.8 ± 0.7 0–4 Study N Fusion Rate Follow-Up Notes Current study 201 68.7% 12 mo Presence of bony fusion based on independent evaluation of CT imaging at 12 mo Cross et al21 19 78.9% 12 mo CT imaging; independently assessed and adjudicated for presence of bridging bone. Threaded implant fixation with decortication and graft placement Kube et al3 17 88.2% 12 mo Thin-slice (<2 mm) CT imaging assessment of bony bridging across the sacroiliac joint and absence of lucency. Threaded implant fixation with decortication and graft placement Abassi et al6 19 73.7% 12 mo CT imaging; independent assessment of solid bridging bone. Threaded implant fixation with decortication and graft placement CT, computed tomography.
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