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Signs of implant loosening at latest follow-up)
| Case number | Femoral radiolucent lines (Gruen zones) | Acetabular radiolucent lines (De Lee zones) | sAP level at time of surgery (U/l) | sAP level at latest follow-up (U/l) | Follow-up (months) |
|---|---|---|---|---|---|
| 1 | 1, 7a | - | 102 | 95 | 97 |
| 2 | - | I, IIa | 79 | 273 | 98 |
| 3 | 1, 7 | - | 122 | 133 | 121 |
| 4 | - | I, IIa | 156 | 376 | 133 |
| 5 | 1, 2, 7 | - | 167 | 300 | 158 |
| 6 b | 1, 7 | I, II, IIIa | 395 | 883 | 194 |
a Components implanted into pagetic bone
b Case with probable loosening of the cup
