Factor | Overall (n = 121) | Without cut-outs (n = 112) | Cut-outs (n = 9) | p-value | OR (95% CI) |
---|---|---|---|---|---|
AO/OTA (%) | 0.305b | N/A | |||
31A1 | 64 (52.9) | 61 (54.5) | 3 (33.3) | ||
31A2 | 52 (43.0) | 46 (41.1) | 6 (66.7) | ||
31A3 | 5 (4.1) | 5 (4.5) | 0 (0) | ||
Singh index (%) | 0.544b | 1.56 (0.37 to 6.54) | |||
≤ 3 | 69 (57.0) | 63 (56.3) | 6 (66.7) | ||
> 3 | 52 (43.0) | 49 (43.7) | 3 (33.3) | ||
Fixation type (%) | 0.941b | 0.95 (0.22 to 4.01) | |||
Helical blade | 39 (32.2) | 36 (32.1) | 3 (33.3) | ||
Lag screw | 82 (67.8) | 76 (67.9) | 6 (66.7) | ||
Lateral wall fracture (%) | 0.001b | 8.16 (1.88 to 35.36) | |||
No | 107 (88.4) | 102 (91.1) | 5 (55.6) | ||
Yes | 14 (11.6) | 10 (8.9) | 4 (44.4) | ||
Nail position quality (%) | 0.072b | 4.14 (0.84 to 20.36) | |||
Poor | 2 (1.7) | 2 (1.8) | 0 | ||
Questionable | 13 (10.7) | 10 (8.9) | 3 (33.3) | ||
Acceptable | 106 (87.6) | 100 (89.3) | 6 (66.7) | ||
Parker’s ratio (AP) | 49.04 ± 8.44 | 48.49 ± 7.95 | 54.54 ± 12.44 | 0.193 | 1.09 (0.89 to 1.18) |
Parker’s ratio (Lat.) | 49.32 ± 9.23 | 49.17 ± 8.52 | 51.16 ± 16.38 | 0.538 | 1.02 (0.95 to 1.11) |
TAD, mm | 18.93 ± 4.90 | 18.65 ± 4.74 | 22.44 ± 5.76 | 0.025 | 1.16 (1.01 to 1.33) |
CalTAD, mm | 22.51 ± 5.88 | 22.07 ± 5.68 | 27.99 ± 5.89 | 0.003a | 1.19 (1.05 to 1.35) |