Table 2 Patient characteristics and nonunion in each study group
Iatrogenic comminution (IC group) (n = 44) | None iatrogenic comminution (NIC group) (n = 167) | p value | |
|---|---|---|---|
Age | 36.3 ± 19.2 | 30.6 ± 18.0 | 0.067 |
Gender | 0.531 | ||
Male | 24 | 99 | |
Female | 20 | 68 | |
Side | 0.288 | ||
Right | 20 | 91 | |
Left | 24 | 76 | |
BMI | 23.53 ± 3.88 | 23.52 ± 4.42 | 0.988 |
Fracture location | 0.077 | ||
Supraisthmius | 5 | 8 | |
Isthmus | 26 | 83 | |
Infraisthmus | 13 | 76 | |
Canal width | 9.97 ± 2.00 | 10.24 ± 1.79 | 0.391 |
Nail size | 11.09 ± 1.24 | 11.04 ± 1.07 | 0.795 |
Nail fit ratio | 1.14 ± 0.17 | 1.10 ± 0.15 | 0.131 |
Operative setting | 0.949 | ||
Supine on fracture table | 20 | 75 | |
Lateral decubitus | 24 | 92 | |
Reduction technique | 0.076 | ||
Open reduction | 13 | 74 | |
Close reduction | 31 | 93 | |
Nail entry point | 0.231 | ||
Piriformis fossa | 37 | 151 | |
Greater trochanter | 7 | 16 | |
Nonunion with 12 months | 14 (31.8%) | 21 (12.5%) | 0.002 |
Nonunion with 24 months | 8 (18%) | 11 (6.6%) | 0.017 |