Table 2.
Patient demographic and operative information for single-level procedures only.
|
Variables |
Trinity (CBM) (n = 32) |
rhBMP-2 (n = 32) |
P
Value |
| Age (average) | 54.7 ± 12.3 | 60.6 ± 11.9 | .0553 |
| BMI (average) | 27.8 ± 7.5 | 27.3 ± 6.0 | .7584 |
| L1-2 | 0 | 0 | 1.0000 |
| L2-3 | 0 | 0 | 1.0000 |
| L3-4 | 0 | 2 | .4921 |
| L4-5 | 16 | 21 | .3114 |
| L5-S1 | 16 | 9 | .1235 |
| Male | 13 | 21 | .0787 |
| Female | 19 | 11 | |
| Private insurance | 15 | 19 | .4527 |
| Average follow-up (mo) | 18.5 ± 5.8 | 14.0 ± 4.5 | .0010a |
| Smoker | 2 | 3 | 1.0000 |
| Hypertension | 15 | 12 | .6131 |
| Diabetes | 4 | 6 | .7323 |
| Levels fused | 19/32 | 25/32 | .1769 |
| Reoperation for pseudo | 3/32 | 1/32 | .6128 |
Abbreviations: CBM, cellular bone matrix; rhBMP-2, recombinant human bone morphogenetic protein-2; BMI, body mass index.
*
Statistically significant value at a threshold of P < .05.