Table 1. Baseline characteristics of studies comparing CBT and PS.
| First author | Total Pts | Average age (years) | Sex (%) | Diagnosis | Level involvement | Avg F/U | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | P | Total (M) | Total (F) | P | L1–L2 | L2–L3 | L3–L4 | L4–L5 | L4–S1 | L5–L6 | L5–S1 | |||||
| Chen | 33 | 56 | 0.12 | 39.4 | 60.6 | 0.01 | Lumbar degenerative disease | Immediate (24–72 hrs) | ||||||||
| Short-term (6–12 weeks) | ||||||||||||||||
| Long-term (6–8 months) | ||||||||||||||||
| Chin | 60 | 58 | 0.61 | 55 | 45 | 0.49 | Multi lumbar disk | 2 years | ||||||||
| Kasukawa | 26 | 67 | – | 11 | 15 | – | Spondylolisthesis | Y | Y | Y | CBT-TLIF 8 months | |||||
| M-TLIF 16 months | ||||||||||||||||
| P-TLIF 13 months | ||||||||||||||||
| Kojima | 222 | 66 | – | 49.5 | 50.5 | – | Lumbar degenerative | – | ||||||||
| Mori | 32 | – | – | – | – | – | Spondylolisthesis | Preoperative | ||||||||
| Post-operative (1 month) | ||||||||||||||||
| Latest F/U (24 months) | ||||||||||||||||
| Ninomiya | 21 | – | 0.83 | – | – | 0.53 | Spondylolisthesis | Y | Y | Preoperative | ||||||
| Immediately post-op | ||||||||||||||||
| 6 months | ||||||||||||||||
| 12 months | ||||||||||||||||
| Orita | 40 | 63.6 | >0.05 | 57.5 | 42.5 | – | Spondylolisthesis | Y | Y | CBT: 12.8+/-3.2 months | ||||||
| PS: 17.8+/-5.5 months | ||||||||||||||||
| Sakaura | 177 | – | – | 46 | 54 | – | Spondylolisthesis | Y | Y | Y | Y | Y | Y | CBT: 35 months | ||
| PS: 40 months | ||||||||||||||||
| Takenaka | 119 | – | 0.997 | 49 | 70 | – | Spondylolisthesis | Y | Y | Y | Y | Y | Y | 12 months | ||
CBT, cortical bone trajectory; PS, pedicle screw; Pts, patients; Avg F/U, average follow-up; Y, yes; TLIF, transforaminal lumbar interbody fusion.