Table 3 Post-revision radiographic outcome of the final cohort
Variables | Cohort at final follow-Up (n = 64 Hips) |
|---|---|
n (%) or Mean ± SD (Range) | |
ETO†|  |
 Union | 62 (97%) |
 Fracture | 2 (3%) |
Engh score* | 21.3 ± 3.59 (15.5–27.0) |
 Fixation | 6.7 ± 2.67 (2.5–10.0) |
 Stability | 14.6 ± 1.79 (11.5–17.0) |
Hips with radiolucent lines†| 7 (11%) |
 Gruen zone 1 only | 4 (6%) |
 Gruen zone 7 only | 2 (3%) |
 Gruen zones 1 and 2 | 1 (2%) |
Spot welds†| 29 (45%) |
 Gruen zone 3 | 15 (23%) |
 Gruen zone 5 | 7 (11%) |
 Gruen zone 6 | 2 (3%) |
 Gruen zone 3 and 5 | 5 (8%) |
Proximal femur Remodeling†|  |
 Regeneration | 43 (67%) |
 No Change | 16 (25%) |
 Stress Shielding | 5 (8%) |