Comparison 1. Ball versus bar attachment systems.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Success (short term; 1 to 3 years) | 2 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
2 Re‐treatment (repair) (short term; 1 to 3 years) | 2 | 130 | Risk Ratio (M‐H, Fixed, 95% CI) | 3.11 [1.68, 5.75] |
3 Re‐treatment (replace) (short term; 1 to 3 years) | 2 | 130 | Risk Ratio (M‐H, Fixed, 95% CI) | 1.18 [0.38, 3.71] |