Number of attempted insertions | Number of unstripped insertions | Stripping rate (%) | Statistical difference in stripping rate | Unstripped screw tightness (%) (95% CI) | Statistical difference in tightness | |
---|---|---|---|---|---|---|
Surgeons | ||||||
Pre-augmentation | 90 | 49 | 46 | p = 0.162 | 77 (73–81) | p = 0.036 |
Augmentation | 90 | 56 | 38 | 83 (79–86) | ||
Researchers | ||||||
Pre-augmentation | 90 | 70 | 22 | p = 0.001 | 76 (71–81) | p = 0.472 |
Augmentation | 90 | 86 | 4 | 74 (71–77) |