Table V.
Comparison of United Classification System grade and AO/OTA fracture type by treatment method (revision vs fixation).
| Variable | Revision (n = 287) |
Fixation (n = 255) |
p-value* |
|---|---|---|---|
| UCS grade, n (%) | < 0.001 | ||
| AG | 2 (0.7) | 1 (0.4) | |
| AL | 10 (3.5) | 5 (2.0) | |
| B1 | 130 (45.3) | 129 (50.6) | |
| B2 | 103 (35.9) | 44 (17.3) | |
| B3 | 38 (13.2) | 9 (3.5) | |
| C | 4 (1.4) | 67 (26.3) | |
| AO/OTA type, n (%) | 0.001 | ||
| Oblique | 34 (11.8) | 44 (17.3) | |
| Transverse | 26 (9.1) | 15 (5.9) | |
| Wedge | 13 (4.5) | 10 (3.9) | |
| Spiral | 165 (57.5) | 171 (67.1) | |
| Metaphyseal split | 37 (12.9) | 9 (3.5) | |
| NC | 12 (4.2) | 6 (2.4) |
*
Chi-squared test.
CB, composite beam; IQR, interquartile range; N/A, not applicable; OTA, Orthopaedic Trauma Association; PTS, polished taper-slip; UCS, Unified Classification System.