Open Access
Review
Table 1
Patella height measurements before and after exchange of the tibial insert to a thicker one creating a pseudo patella infera.
| Index | Before revision | After revision | Classification preop | Classification postop |
|---|---|---|---|---|
| Insall-Salvati (ISI) | 1.2 | 1.2 | Patella norma | Patella norma |
| Modified Insall-Salvati (mISI) | 1.6 | 1.6 | Patella norma | Patella norma |
| Modified Caton-Deschamps (mCDI) | 1.4 | 1.4 | norma? | norma? |
| Derived Caton-Deschamps (dCDI) | 0.6 | 0.4 | Patella norma | Patella infera |
| Modified Blackburne-Peel (mBPI) | 0.7 | 0.5 | Patella norma | Patella infera |
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