Table 1. Summary of clinical data from included studies.
| Study, first author and year | Number of patients | Age of patients (y) | Duration of follow-up after revision (mo) | Secondary intervention | Fusion success (binary) | Clinical success (binary) |
|---|---|---|---|---|---|---|
| Brodsky, 199213 | 34 | 47 (31–72) | 60 | 17 ACDF with ICBG without plate; 17 posterior wiring with ICBG | 13/17 anterior (76%); 16/17 posterior (94%) | 10/17 anterior (59%); 15/17 posterior (88%) |
| Carreon, 200619 | 120 (27 anterior, 93 posterior) | Not detailed | 42 (24–132); 52 (24–120) | 27 ACDF with plate and ICBG; 93 posterior fusion | Anterior: 15/27 (56%); posterior: 91/93 (98%) | Not detailed |
| Caspar, 199921 | 37 | 47 (30–66) | 24.7 (20–112) | All with revision ACDF with plate and ICBG | 37/37 (100%) | 31/37 (84%) |
| Coric, 199718 | 19 | 49 (25–72) | 22 (12–42) | All with revision ACDF with plate and allograft | 19/19 (100%) | 15/18 (83%) |
| Farey, 199022 | 19 | 45 (23–57) | 44 (24–54) | All with posterior wiring with ICBG | 19/19 (100%) | Not detailed |
| Gore, 200334 | 25 | Not detailed | 60 (12–168) | All with posterior wiring with ICBG | 25/25 | Not detailed |
| Kuhns, 200523 | 36 (3 lost to follow up) | 47 (28–63) | 46 (20–86) | 17 one-level PCF (6 at C5–C6, 11 at C6–C7), 9 two-level (2 at C4–C6, 7 at C5–C7), 6 three-level (1 at C3–C6, 4 at C4–C7, 1 at C5–T1), 1 four-level (C3–C7) | 33/33 (100%) | 25/33 (72%) |
| Liu, 201224 | 38 | 45 (24–60) | 28 (24–60) | 38 PCF with lateral mass screws | 38/38 (100%) | 32/38 (84%) |
| Lowery, 199520 | 37 (44 procedures) | 47 (18–79) | 28 (12–60) | 20 ACDF with plate (7 ICBG, 13 allo); 17 posterior plating (10 local auto, 2 ICBG, 5 allo) | 9/20 anterior (45%); 16/17 posterior (94%); 7/7 circumferential (100%) | 8/20 anterior (40%); 14/17 posterior (82%); 5/7 circumferential (71%) |
| Mutoh, 199325 | 15 | 56 (36–74) | 27 (16–86) | 12 posterior wiring with ICBG; 2 posterior plating with ICBG (1 fused C1–C7 for multilevel instability); 1 ACDF with ICBG | 15/15 (100%) | 5 of 15 were symptomatic preoperatively; 4/5 recovered completely after |
| Newman, 199331 | 16 | 40 | Not detailed | 16 revision ACDF | 13/16 (81.2) | 5/7 (71.4%) |
| Phillips, 199726 | 48 (32 symptomatic, 22 had revision) | 46 (29–75) | 32 (minimum 12) | 16 ACDF with ICBG without plate; 6 posterior wiring with ICBG | 14/16 anterior (88%); 6/6 posterior (100%) | 14/16 anterior (88%); 6/6 posterior (100%) |
| Siambanes, 199827 | 14 | 43 (33–52) | 42 (6–126) | All with posterior wiring with ICBG | 14/14 (100%) | Not detailed |
| Toohey, 200630 | 18 | All with posterior Halifax clamp fixation | 18/18 | Not detailed | ||
| Tribus, 199928 | 16 | 42 (33–62) | 19.2 (43–61) | All with revision ACDF with plate and ICBG | Grade 1: 10/16; grade 2: 3/16; grade 3: 2/16; grade IV: 1/16 | 13/16 (81%) |
| Zdeblick, 199729 | 23 | 50 (31–63) | 44 (24–216) | 20 ACDF with ICBG without plate; 3 ACCF with autograft fibula strut | 23/23 (100%) | 20/23 (87%) |
Abbreviations: ACCF, anterior cervical corpectomy and fusion; ACDF, anterior cervical diskectomy and fusion; allo, allograft auto, autograft; ICBG, iliac crest bone graft; PCF, posterior cervical fusion.