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Demographics and lumbar pathology
| rhBMP-2 (n = 48) | |
|---|---|
| Age (years) | 48.3 |
| Sex (% male) | 52.1 |
| Smoker (%) | 34.5 |
| Diagnosis (%) | |
| DDD | 12.5 |
| DDD/HNP | 6.3 |
| RHNP | 29.2 |
| IS | 35 |
| DS | 15 |
| Failed lami fusion | 2.1 |
| Radiographic f/u (mo.) | 19.4 |
| Clinical f/u (mo.) | 27.4 |
| Previous surgery (%) | 43.9 |
| TLIF level (%) | |
| L2–3 | 0 |
| L3–4 | 6.3 |
| L4–5 | 52.1 |
| L5–S1 | 41.7 |
DDD degenerative disc disease, HNP herniated nucleus pulposus, RHNP recurrent herniated nucleus pulposus, IS isthmic spondylolisthesis, DS degenerative spondylolisthesis
