Table 1 Baseline characteristics of 103 patients with atrophic nonunion
Variable | Total (N = 103) | Patients treated with two-stage IMT (N = 41) | Patients treated with one-stage autograft (N = 62) | P value |
|---|---|---|---|---|
Mean age (years) | 39.43 ± 11.27 | 39.42 ± 11.90 | 39.44 ± 10.39 | 0.993 |
Age stratification | Â | Â | Â | Â |
 < 40 years | 46 (44.7) | 19 (46.3) | 27 (43.5) | 0.841 |
 ≥ 40 years | 57 (55.3) | 22 (53.7) | 35 (56.5) |  |
Gender | Â | Â | Â | Â |
 Male | 79 (76.7) | 30 (73.2) | 49 (79.0) |  |
 Female | 24 (23.3) | 11 (26.8) | 13 (21.0) |  |
BMI (kg/m2) | 24.6 ± 1.8 | 24.9 ± 1.9 | 24.2 ± 1.8 | 0.247 |
Site | Â | Â | Â | Â |
 Tibia | 33 (32.0) | 17 (41.5) | 16 (25.8) | 0.131 |
 Femur | 70 (68.0) | 24 (58.5) | 46 (74.2) |  |
Prior fracture | Â | Â | Â | Â |
 Open | 67 (65.0) | 30 (73.2) | 37 (59.7) | 0.206 |
 Closed | 36 (35.0) | 11 (26.8) | 25 (40.3) |  |
Tobacco use | Â | Â | Â | Â |
 Yes | 32 (31.1) | 12 (29.3) | 20 (32.3) | 0.829 |
 No | 71 (68.9) | 29 (70.7) | 42 (67.7) |  |
Diabetes | Â | Â | Â | Â |
 Yes | 13 (12.6) | 6 (14.6) | 7 (11.3) | 0.763 |
 No | 90 (87.4) | 35 (85.4) | 55 (88.7) |  |
Initial osteosynthesis | Â | Â | Â | Â |
 Intramedullary nail | 42 (40.0) | 17 (41.5) | 25 (40.3) | 0.935 |
 Osteosynthesis plate | 35 (33.3) | 13 (31.7) | 22 (35.5) |  |
 Othersa | 26 (24.7) | 11 (26.8) | 15 (24.2) |  |