Table 2 Postoperative radiological results of study participants and comparison between the groups
Variables | BG group (n = 19) | Non-BG group (n = 18) | p value |
|---|---|---|---|
Time to revision (months) | 16.2 ± 5.7 (9.0–30.0) | 15.7 ± 7.6 (9.0–43.0) | 0.781 |
Implant at revision | 0.197 | ||
Reconstructive IM nail | 11 (57.9) | 14 (77.8) | |
Long PFN | 8 (42.1) | 4 (22.2) | |
Correction of malalignment after revision | |||
Varus correction (°) | 6.2 ± 2.5 (0–9.0) | 4.1 ± 1.9 (0–6.0) | 0.001 |
Sagittal correction (°) | 2.9 ± 3.0 (0–12.0) | 0.6 ± 0.7 (0–2.0) | 0.001 |
Gap reduction (mm) | 2.9 ± 1.3 (1.0–6.0) | 2.6 ± 1.2 (1.0–6.0) | 0.324 |
Alignment after revision | |||
Neck-shaft angle (°) | 124.2 ± 2.1 (120.0–130.0) | 123.8 ± 1.8 (121.0–127.0) | 0.374 |
Difference from contralateral side (°) | 3.8 ± 1.2 (2.0–6.0) | 3.3 ± 1.3 (1.0–6.0) | 0.258 |
Sagittal anterior angulation (°) | 2.8 ± 1.0 (1.0–5.0) | 3.6 ± 1.9 (1.0–8.0) | 0.199 |
Fracture gap (mm) | 1.8 ± 0.6 (1.0–3.0) | 1.7 ± 0.7 (1.0–3.0) | 0.753 |
Follow-up period (months) | 18.1 ± 5.0 (12.0–30.0) | 18.9 ± 7.6 (12.0–43.0) | 0.988 |
Union | 17 (89.5) | 16 (88.9) | 1.000 |
Time to union (months) | 7.4 ± 1.3 (6.0–10.0) | 7.6 ± 0.9 (6.0–9.0) | 0.654 |