Table 3.
Revision details (7 aseptic revisions—17.5% aseptic revision rate at mean 65-month mean followup).
| Diagnosis | Charnley class | Femoral head type | Femoral head size | Femoral component | Acetabular component | Articulation | Reason for revision | Revision details | Time to revision (months) |
|---|---|---|---|---|---|---|---|---|---|
| AVN | B | CoCr | 22 | Biomet Integral | Biomet RB | MOP | Recurrent dislocations-poly wear. | Exchanged liner and head. | 123.7 |
|
| |||||||||
| JRA | C | CoCr | 22 | DePuy SROM | Biomet RB | MOP | Periprosthetic femur fracture. | Stem revised. | 92.5 |
|
| |||||||||
| OA 2/2 Perthes | A | CoCr | 45 | DePuy SROM | DePuy ASR | MOM-ASR | Aseptic loosening. No metallosis. |
Stem loose, fibrous fixation cup. Complete revision with MOP. | 26.7 |
|
| |||||||||
| Failed hip fusion (Fused for AVN) |
A | CoCr | 28 | Biomet MH Calcar | Biomet RB | MOM (sandwich) | Recurrent dislocation. Metallosis found. |
Cup and stem stable. Revised to MOP. |
101.8 |
|
| |||||||||
| AVN | A | CoCr | 38 | Biomet Intergral | Biomet M2A | MOM-M2A | Metallosis-mild metal debris/excessive scar. | No loosening. Revised to MOP | 92.1 |
|
| |||||||||
| OA 2/2 CDH | A | CoCr | 41 | DePuy SROM | DePuy ASR | MOM-ASR | Metallosis. |
No loosening. Revised to MOP. | 60.8 |
|
| |||||||||
| OA 2/2 CDH | A | CoCr | 46 | DePuy SROM | DePuy ASR | MOM-ASR | Metallosis. |
No loosening. Revised to MOP |
21.8 |
AVN: avascular necrosis, JRA: juvenile rheumatoid arthritis, OA: osteoarthritis, CDH: congenital dysplasia of the hip, CoCr: cobalt chromium, MOM: metal on metal, MOSP: metal on conventional polyethylene.