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Patient demographics
| Parameter | Value |
|---|---|
| Gender (males/females) | 24/10 |
| Side (right/left) | 24/10 |
| Mean age at primary surgery (years) | 57.3 |
| Mean age at revision surgery (years) | 60.4 |
| Mean delay between surgeries (months) | 17.0 |
| Mean body mass index (kg/m2) | 28.3 |
