Spinal Rod System Data vs Brantigan Cage Publication
| Brantigan Cage IDE | Carbon-fiber-reinforced Cage | BAK | Spinal Rod System | P value | |
|---|---|---|---|---|---|
| Mean Length Follow-Up (Months) | 24 Months | 35.1 Months | 22.8±4 Months | ||
| Surgical Time (Minutes) | 297±82 (175-633)* | 151.71±40 (70-225)# | 137.44±53 (72-228) | 125.2±29.2 (70-203) | P = 0.000a,b |
| EBL (ml) | 1577±1246 (100-8200)a | 695.5 ±423 (100-1700) | 812.14±504 (200-2500) | 942.1±504 (300-2600) | P = 0.000a |
| Dural Tears | 41 / 221 (18.6%)** | 7 / 100 (7%) | 8 / 100 (8%) | 3/100 (3.0%) | P = 0.000c |
| Disc Space Height (mm) | |||||
| Preoperative | 7.9 | 5.7 | 5.6 | 7.55 | |
| Intitial Postop | 12.3 | 9 | 10.3 | 9 | |
| Lost at Healing | 0.6 | 0.2 | 1.4 | 0.94 | |
| Reoperation Rate | 102 / 221 (46.1%)c | 5 / 100 (5%) | 3 / 100 (3%) | 4/100 4.0%) | P = 0.000c |
| Revision of Pedicle | |||||
| Screws or cages | 5 / 221 (2.2%) | 1 / 100 (1%) | 0 / 100 (0%) | 0/102 (0%) | NS |
| Fusion Success | 176 / 178 (98.9%) | 98 / 100 (98%) | 100 / 100 (100%) | 100/100 (100%) | NS |
| Reference | Brantigan et al8 | McAfee et al17 | McAfee et al17 | ||
The average overall surgical time, estimated blood loss and incidence of intraoperative durotomies was significantly higher for the clinical IDE Brantigan series versus all other treatments (P < .05). For each treatment modality, the intervertebral disc space height and foraminal height were restored as part of the surgical procedure. However, it's interesting to note that the disc height lost at healing was greatest for the cylindrical BAK (1.4 mm) vs the carbon-fiber-reinforced cage (0.2 to 0.6 mm) and PEEK cage (0.9 mm).
↵a Indicates difference from all other treatments
↵b Significantly greater than spinal rod system (ANOVA,P < .05).
↵c Versus all (χ2 Comparison of Contingency Tables). NS = Not significant at P < .05