Table 2.
Initial cost of surgery, quality of life* six months after total hip replacement, and revision rates according to prosthesis type
| Variables | Age 60 | Age 70 | Age 80 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cemented | Cementless | Hybrid | Cemented | Cementless | Hybrid | Cemented | Cementless | Hybrid | ||||
| Men: | ||||||||||||
| EQ-5D-3L index | 0.797 | 0.807 | 0.810 | 0.819 | 0.836 | 0.848 | 0.797 | 0.804 | 0.824 | |||
| Oxford hip score | 40.0 | 40.4 | 40.9 | 40.4 | 41.0 | 41.6 | 39.7 | 40.4 | 41.1 | |||
| Initial cost (£)† | 5996 | 6811 | 6610 | 6096 | 6919 | 6711 | 6459 | 7227 | 6989 | |||
| 5 year revision rate‡ (%) | 2.4 | 3.1 | 2.5 | 2.0 | 2.9 | 2.3 | 1.8 | 3.3 | 3.3 | |||
| 10 year revision rate§ (%) | 6.7 | 6.7 | 6.9 | 4.8 | 5.2 | 5.1 | 3.3 | 4.5 | 4.7 | |||
| Women: | ||||||||||||
| EQ-5D-3L index | 0.785 | 0.787 | 0.800 | 0.781 | 0.799 | 0.805 | 0.754 | 0.749 | 0.751 | |||
| Oxford hip score | 39.8 | 40.1 | 40.3 | 39.1 | 40.0 | 40.3 | 38.3 | 38.4 | 38.3 | |||
| Initial cost (£)† | 6065 | 6882 | 6694 | 6193 | 7018 | 6822 | 6581 | 7351 | 7126 | |||
| 5 year revision rate‡ (%) | 1.8 | 2.9 | 2.1 | 1.5 | 2.8 | 1.9 | 1.4 | 3.1 | 2.7 | |||
| 10 year revision rate§ (%) | 5.1 | 5.6 | 5.3 | 3.6 | 4.5 | 4.0 | 2.5 | 4.0 | 3.8 | |||
*After applying GenMatch and regression to allow for observed preoperative differences.
†Combined costs of prosthesis, operating theatre, and hospital stay.
‡After adjusting for case mix by applying piecewise constant hazards model to linked data from the National Joint Registry of England and Wales and hospital episode statistics.
§After adjusting for case mix by applying piecewise constant hazards model to linked data from the National Joint Registry of England and Wales and hospital episode statistics, (years 1-5) and by applying Weibull hazard function to data from hospital episode statistics (years 6-10).