Table 3.
Failure patients details
| Primary diagnosis | Failure | Months to failure | Revision surgery | WOMAC at final f-up | Bearing | Head Size | Stem | Cup | Bulk bone graft | Anatomy |
|---|---|---|---|---|---|---|---|---|---|---|
| Developmental dysplasia of the hip (DDH) | Aseptic loosening cup | 149 | Acetabular revision with allograft and reinforcement ring | 0.5 | MOXLP | 28 | Cemented | RR, cemented | Yes | Distorted* |
| Aseptic loosening cup | 7 | Acetabular revision with reinforcement ring | 4.6 | MOP | 28 | Pressfit | Pressfit | No | Distorted | |
| Aseptic loosening cup | 44 | Acetabular revision with reinforcement ring | 2.4 | MOM | 28 | Cemented | RR, cemented | No | Distorted | |
| Aseptic loosening stem | 105 | Change of liner and stem | N/A | MOXLP | 28 | Cemented | Pressfit | No | Distorted | |
| Eccentric wear | 144 | Change of cup, liner and head | 5.9 | COP | 28 | Pressfit | Pressfit | No | Distorted | |
| Periprosthetic joint infection | 70 | Girdlestone, no re-THA | 3.3 | MOP | 22 | Cemented | RR, cemented | Yes | Distorted | |
| Periprosthetic joint infection | 1 | Girdlestone, re-THA after 5 months | 0 | COXLP | 28 | Pressfit | Pressfit | No | Distorted | |
| Uncoverage of cup, irritation of psoas tendon | 33 | Change of cup, liner and head | 0.2 | COXLP | 28 | Pressfit | Pressfit | No | Distorted | |
| Periprosthetic fracture | 101 | Internal fixation, change of cup, liner and stem | N/A | MOXLP | 28 | Pressfit | Pressfit | No | Distorted | |
| Osteonecrosis of the femoral head (ON) | Aseptic loosening stem | 220 | Change of liner and stem | 0 | MOXLP | 28 | Cemented | Pressfit | No | Regular |
| Periprosthetic joint infection | 45 | Change of liner and stem | 0 | MOXLP | 28 | Cemented | Pressfit | No | Regular | |
| Periprosthetic joint infection (IVDA) | 194 | Girdlestone, no re-THA | N/A | MOXLP | 28 | Cemented | Pressfit | No | Regular | |
| Uncoverage of cup, irritation of psoas tendon | 11 | Change of cup, liner and head | 5.7 | MOM | 28 | Pressfit | Pressfit | No | Regular | |
| Increased offset, irritation of iliotibial band | 6 | Change of cup, liner and head | 3.2 | MOP | 28 | Pressfit | Pressfit | No | Regular | |
| Breakage of the stem | 134 | Change of liner and stem | 1.7 | MOXLP | 28 | Pressfit | Pressfit | No | Regular | |
| Breakage of the stem | 138 | Change of liner and stem | 0 | MOXLP | 28 | Cemented | Pressfit | No | Regular | |
| Post-traumatic osteoarthritis | Periprosthetic joint infection | 26 | Girdlestone, re-THA after 3 months | 4.6 | MOXLP | 28 | Pressfit | RR, cemented | No | Regular |
| Uncoverage of cup, irritation of psoas tendon | 0 | Change of cup, liner and head | 0 | MOXLP | 28 | Pressfit | RR, cemented | No | Regular | |
| Periprosthetic fracture | 186 | Change of cup, liner and stem | 0.6 | MOM | 28 | Pressfit | Pressfit | No | Regular | |
| Secondary osteoarthritis after septic arthritis | Periprosthetic joint infection (IVDA) | 6 | Girdlestone, no re-THA | N/A | MOXLP | 28 | Cemented | RR, cemented | No | Regular |
| Legg-calve-perthes-disease (LCPD) | Uncoverage of cup, irritation of psoas tendon | 36 | Change of cup, liner and head | 0.3 | MOXLP | 28 | Pressfit | Pressfit | No | Distorted |
IVDA intravenous drug abuse, THA total hip arthroplasty, MOXLP metal on highly cross-linked polyethylene, MOP metal on polyethylene, MOM metal on metal, COP ceramic on polyethylene, COXLP ceramic on highly cross-linked polyethylene, RR reinforcement ring, *Distorted: relevant prearthrotic alteration of bony anatomy of the hip (e.g., pathological lateral center edge angle)