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Cup center of rotation (COR) and offset
| COR superior (mm) | n hips | Offset discrepancy |
|---|---|---|
| 0–3 | 46 | 1.1 ± 3.6 |
| 4–5 | 23 | 1.7 ± 6.3 |
| 6+ | 14 | 2.9 ± 6.3* |
COR superior = number of millimeters the COR is displaced superiorly; n hips = number of hips; offset discrepancy = the discrepancy in offset between the normal hip and the reconstructed hip; * = p = 0.02 versus contralateral normal hip.
