Table 1 Mean and median differences in actual vs expected cavity diameters in each test group
From: Enhancing acetabular reaming accuracy: optimal techniques and a novel reamer design
Group | n | Difference from expected diameter (mm) | |
|---|---|---|---|
Mean ± SD | Median (range) | ||
S Conv 10 | 10 | 1.7 ± 0.4 | 1.7 (1.1–2.4) |
S Conv 30 | 10 | 1 ± 0.2 | 1 (0.8–1.3) |
S Novel 10 | 10 | 1.2 ± 0.7 | 1.1 (0–2.4) |
S Novel 30 | 10 | 0.1 ± 0.1 | 0.2 (0–0.3) |
W Conv 10 | 10 | 0.3 ± 0.1 | 0.3 (0.2–0.5) |
W Conv 30 | 10 | 0.3 ± 0.1 | 0.3 (0.1–0.4) |
W Novel 10 | 10 | 0.2 ± 0.2 | 0.1 (− 0.1–0.6) |
W Novel 30 | 10 | 0.1 ± 0.3 | 0.1 (− 0.3–1) |
S Conv | 20 | 1.3 ± 0.4 | 1.2 (0.8–2.4) |
S Novel | 20 | 0.7 ± 0.7 | 0.3 (0–2.4) |
W Conv | 20 | 0.3 ± 0.1 | 0.3 (0.1–0.5) |
W Novel | 20 | 0.1 ± 0.3 | 0.1 (− 0.3–1) |