Table II.
Pre-operative wound characteristics scored by Wound, Ischemia, foot Infection (WIfI) classification system.
| Factor | PTI N=27 |
No PTI N=95 |
P-Value |
|---|---|---|---|
| Wound Status
| |||
| No | 0 | 0 | 0.759 |
| Minor | 5 (18.5%) | 15 (15.8%) | |
| Major | 18 (66.7%) | 60 (63.2%) | |
| Extensive | 4 (14.8%) | 20 (21.1%) | |
|
Ischemia | |||
| Grade 0 (ABI ≥ 0.8, TP ≥ 60) | 1 (3.7%) | 8 (8.4%) | 0.254 |
| Grade 1 (ABI 0.6–0.79, TP 40–59) | 7 (25.9%) | 11 (11.6%) | |
| Grade 2 (ABI 0.4–0.59, TP 30–39) | 1 (3.7%) | 9 (9.5%) | |
| Grade 3 (ABI < 0.4, TP < 30 | 11 (40.7%) | 35 (36.8%) | |
|
Existing Foot Infection | |||
| No | 10 (37.0%) | 55 (57.9%) | 0.034 |
| Mild (< 2cm Cellulitis) | 5 (18.5%) | 21 (22.1%) | |
| Moderate (Cellulitis or Purulence) | 12 (44.4%) | 19 (20.0%) | |
| Extensive (Sepsis) | 0 | 0 | |
|
Target Status | |||
| Runoff Score | 5.0 ± 1.6 | 4.8 ± 1.9 | 0.594 |
PTI: prior tibial intervention; nPTI: no prior tibial intervention. ABI: ankle-brachial index; TP: toe pressure.