Table 2 Comparison of patients with and without PPIF following osteosynthesis for femoral pertrochanteric fracture with INTERTAN™
PPIF (12) | NPPIF (86) | p value | |
|---|---|---|---|
Age (mean + SD) | 77.7 (SD 9.7) | 74.4 (SD 15.6) | 0.488 |
Sex | 0.069 | ||
Male | 2 (16.7%) | 38 (44.2%) | |
Female | 10 (83.3%) | 48 (55.8%) | |
BMI (mean + SD) | 27.3 (SD 6.1) | 23.2 (SD 4.2) | 0.005 |
OTA classificationa | 0.646 | ||
A1 | 0 | 10 (11.6%) | |
A2 | 12 (100%) | 61 (71.0%) | |
A3 | 0 | 15 (17.4%) | |
Quality of reduction | |||
According to neck-shaft angle | 0.362 | ||
Good | 9 (75.0%) | 52 (60.5%) | |
Acceptable | 3 (25.0%) | 22 (25.6%) | |
Poor | 0 | 12 (14.0%) | |
According to medial cortical support | 0.103 | ||
2 (16.7%) | 7 (8.1%) | ||
Negative | 8 (66.6%) | 37 (43.0%) | |
Neutral | 2 (16.7%) | 42 (48.8%) | |
Positive | |||
Quality of fixation | |||
TAD (mm) | 17.2 (SD 5.8) | 21.5 (SD 5.6) | 0.126 |
Cleveland index | 0.182 | ||
1/2/3 | 1/2/2 | 6 /33/0 | |
4/5/6 | 0/7/0 | 2 /41/2 | |
7/8/9 | 0/0/0 | 0/2/0 | |
Nail length | 0.334 | ||
Short nail | 2 (16.7%) | 28 (32.6%) | |
Long nail | 10 (83.3%) | 58 (67.4%) | |
MoF | |||
Lesser trochanter width (mm) | 28.0 (SD 2.7) | 30.8 (SD4.1) | 0.026 |
Low-lesser trochanter width (mm) | 18.7 (SD 2.6) | 23.2 (SD3.0) | 0.001 |
Diameter of isthmus (mm) | 12.1 (SD1.2) | 14.4 (SD2.5) | 0.002 |
Canal flare index | 2.4 (SD0.4) | 2.3 (SD1.0) | 0.693 |