Table 1.
. Grade of injury in TLICS, Denis, and AO systems, correlated to nonsurgical or surgical treatment and development of progressive kyphosis. Classifications are based on retrospective readings. Δ=delta or change in kyphosis.
| Patients treated without surgery | Patients with surgical fixation | |||||
|---|---|---|---|---|---|---|
| Grade of injury | Total | Kyphosis Δ10–19º | KyphosisΔ> 20 º | Total | KyphosisΔ10-19º | KyphosisΔ> 20 º |
| TLICS 1-2 (n = 23) | 18 (78%) | 6 (33%) | 0 (0%) | 5 (22%) | 1 (20%) | 0 (0%) |
| TLICS 4 (n = 10) | 7 (70%) | 4 (57%) | 1 (14%) | 3 (30%) | 2 (67%) | 0 (0%) |
| TLICS 5+ (n = 33) | 4 (12%) | 0 (0%) | 2 (50%) | 29 (88%) | 6 (21%) | 4 (14%) |
| TLICS Indeterminate (n = 1) | 1 (100%) | 1 (100%) | 0 (0%) | 0 | na | na |
| Denis 1 (n = 5) | 5 (100%) | 1 (20%) | 0 (0%) | 0 | na | na |
| Stable Denis 2 (n = 24) | 17 (71%) | 9 (53%) | 1 (6%) | 7 (29%) | 2 (29%) | 0 (0%) |
|
Denis 3 (n = 37) + Unstable Denis 2 (n = 1) |
8 (21%) | 1 (13%) | 2 (25%) | 30 (79%) | 7 (23%) | 4 (13%) |
| AO A only (n = 32) | 23 (72%) | 10 (39%) | 0 (0%) | 9 (28%) | 4 (44%) | 0 (0%) |
| AO B1-2: all A, C = 0 (n = 21) | 6 (29%) | 1 (17%) | 3 (50%) | 15 (71%) | 2 (13%) | 3 (20%) |
| AO B3: all A, C = 0 (n = 2) | 0 | 0 | 0 | 2 | 1 (50%) | 0 |
| AO C: All A, all B (n = 12) | 1 (8%) | 0 | 0 | 11 (92%) | 2 (18%) | 1 (9%) |