Table 3.
Radiographic parameters
| Parameter | Value |
|---|---|
| Time between surgery and CT (years) | 7.7 ± 2.2 (5–14.4) |
| Volumetric wear (cm3) | 1.04 ± 0.66 (−0.33–2.58) |
| Volumetric wear rate (cm3/year) | 0.136 ± 0.082 (−0.051–0.335) |
| Linear wear (mm) | 1.86 ± 1.09 (−0.31–4.51) |
| Linear wear rate (mm/year) | 0.24 ± 0.13 (−0.05–0.54) |
| Number of followup radiographs used to compute wear rate for each hip | 6 ± 2.8 (3–21) |
| Cup abduction angle (°) | 39.5 ± 7.6 (22–58) |
| Depth of acetabular seating (cm) | 2 ± 2.8 (−8.2–8.1) |
| Time between radiographs and CT (days) | 10 ± 24 (−71–84) |
| Femoral lysis area (cm2) among 45 THAs with femoral osteolysis | 1.71 ± 1.85 (0.14–7.96) |
| Pelvic lysis area (cm2) among 36 THAs with pelvic osteolysis | 3.98 ± 4.04 (0.07–18.47) |
| Total lysis area (cm2) among 48 THAs with pelvic or femoral osteolysis | 4.59 ± 4.21 (0.07–18.72) |
All data are continuous variables and are expressed as mean ± standard deviation, with range in parentheses.