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Relative change of femoral head roundness parameters after VFO
| Plane | Relative change | ||
|---|---|---|---|
| AP (n = 25) | LHR (%) | MHR (%) | CHH (%) |
| Mean (Range) | 21.4 (0.1–56.5) | 2.7 (−14.8 to 14.3) | 7.8 (−18.2 to 52.9) |
| Lateral (n = 14) | AHR (%) | PHR (%) | CHH (%) |
| Mean (Range) | 10.6 (3.7–19.4) | 3.4 (−6.3 to 16.7) | 6.3 (−0.5 to 17.6) |
LHR = lateral head roundness; MHR = medial head roundness; CHH = central head height; AHR = anterior head roundness; PHR = posterior head roundness.
