| Hips (patients), n |
47 (44) |
| Mean age at surgery, years (SD; range) |
58.8 (10.8; 30.0–79.0) |
| Gender, n |
|
| Female |
25 (53.2%) |
| Male |
22 (46.8%) |
| Side, n |
|
| Right |
27 (57.4%) |
| Left |
20 (42.6%) |
| Mean body mass index, kg/m2 (SD; range) |
27.8 (4.9; 20.2-44.9) |
| Cause of revision, n |
|
| ARMD |
29 (61.7%) |
| Infection |
4 (8.5%) |
| Infection and ARMD |
1 (2.1%) |
| Instability |
4 (8.5%) |
| Aseptic loosening |
4 (8.5%) |
| Residual pain |
3 (6.4%) |
| Liner fracture |
2 (4.3%) |
| Acetabular defect – Paprosky classification, n |
|
| Type 1 |
42 (89.4%) |
| Type 2A |
2 (4.2%) |
| Type 2B |
0 (0.0%) |
| Type 2C |
3 (6.4%) |
| Type 3 |
0 (0.0%) |
| Pre-revision mean acetabular cup abduction angle, ° (SD; range) |
45.4 (6.6; 29.4-60.0) |
| Pre-revision acetabular protrusion, n |
5 (10.6%) |
| Pre-revision heterotopic ossification, n |
|
| Brooker Class I |
5 (10.6%) |
| Brooker Class II |
1 (2.1%) |
| Brooker Class III |
1 (2.1%) |
| Pre-revision mean acetabular cup diameter, mm (SD; range) |
53.2 (4.8; 41.0-64.0) |
| Prosthesis, n |
|
| CoC LDH |
|
| Maxera (Zimmer Biomet, Warsaw, Indiana) |
38 (80.8%) |
| MoM LDH |
|
| Durom Metasul (Zimmer Biomet, Warsaw, Indiana) |
3 (6.4%) |
| DM |
|
| Polarcup (Smith & Nephew, Memphis, Tennessee) |
6 (12.8%) |
| Mean acetabular cup diameter, mm (SD; range) |
56.6 (4.4; 46.0-66.0) |
| Mean femoral head diameter, mm (SD; range) |
44.9 (3.5; 36.0-54.0) |
| Mean follow-up, years (SD; range) |
4.5 (2.7; 2.0-13.7) |